2-bromobutane is treated with sodium methoxide in methanol at 323 k . draw the major product of the reaction. make sure to consider the stereochemistry of the reaction.

Answers

Answer 1

This is an example of elimination reaction which is resulting in the formation of 1-butene.

A sort of chemical process called an elimination reaction involves the removal of a number of atoms from a molecule, usually in pairs or groups. The elimination typically occurs as a result of the activity of metals, acids, and bases. The procedure of heating at elevated temps can also cause it.
The kind of atoms or clusters of atoms that are expelled from the molecule is a typical way to identify elimination processes. Dehydrohalogenation, for instance, is the elimination of a hydrogen atom and a halogen atom; dehalogenation is the reaction's name when both departing atoms are halogens.

Methoxide will deprotonate the butane 1-methyl group, forming a carbon-carbon double bond in the second position and rupturing the carbon-bromine bond all at once.
As a consequence, 1-butene is produced.
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2-bromobutane Is Treated With Sodium Methoxide In Methanol At 323 K . Draw The Major Product Of The Reaction.

Related Questions

What is physical since ?

Answers

You mean physical science?

Answer:

Phycical science is the study of the body.

Explanation:

I NEED HELP! An iron cube is placed in liquid water. Which particles have the higher kinetic energy?

Answers

Answer:

Liquid water has higher kinetic energy thn iron cube

Explanation:

Please mark as brainliest

which of the following objects will expert the greatest gravitational force on a box, if the distance between them remains the same? 2 kg mass 4 kg mass 6 kg mass 8 kg mass
PLEASE HELP!!!

Answers

The answer is 8kg mass, because the maximum gravitational force on the box.

In the mass spectrum of pentane, the presence of a peak with an m/z = 29 most likely is due to the loss of what radical from the molecule?

Answers

In the mass spectrum of pentane, the presence of a peak with an m/z = 29 most likely is due to the loss of butyl radical from the molecule.

A spectrum (spectra or spectra) is a state that is not confined to a particular set of values ​​and can vary seamlessly on a continuum. The term was first used scientifically in optics to describe the rainbow colors of visible light after passing through a prism.

The Spectrum of Life in the Hall of Biodiversity is an evolutionary journey through the incredible diversity of life on Earth. The 1,500 specimens represent a wide range of bacteria, fungi, plants and animals, from the smallest microbes to giants of land and water. A spectrum is defined as the characteristic wavelengths of electromagnetic radiation (or parts thereof) emitted or absorbed by an object or substance, atoms or molecules. Examples of spectra include the rainbow, the colors of the sun's emission, and infrared absorption wavelengths of molecules.

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gosh i rly need help in the previous questions I asked and no one answered I wish I was smart to answer them alone why am I d.umb

Answers

Answer:

gonna check them rn :) youre not d u mb dont worry (:

How would you make 41 mL of 43% vinegar in water solution?

Answers

41ml of 43% vinegar in water solution can be made by mixing 17.63ml vinegar in 23.37ml of water.

According to condition, the total volume of the solution to be made should be 41ml and it should have a concentration of 43% of vinegar in it.

43% of the 41ml can be calculated using percentage formula, we can find the concentration required,

Let say we have to add L ml of vinegar to make the solution, then,

%age = Amount to be obtained/ total amount x 100

43 = L/41 x 100

L =  41 x 43/100

L = 1763/100

L = 17.63 ml.

Total volume of the solution is 41ml,

So the amount of the water needed,

Water needed = 41ml - 17.63ml

water needed = 23.37ml

So we can conclude,

41ml of 43% vinegar in water solution can be made by mixing 17.63ml of vinegar with 23.37ml of water.

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Please help me with this! It’s not timed so take your time!

Please help me with this! Its not timed so take your time!

Answers

Answer:

pretty sure they're called groups

I’m pretty sure its groups

Which of the following liquids is most volatile? Select one: a. cooking oil b. motor oil c. alcohol d. water

Answers

Answer:

Alcohol.

Explanation:

It has the lowest boiling point and high vapour pressure.

Add curved arrows to the reactant side of the following SN2 reaction to indicate the flow of electrons. Dravw the product species to show the balanced equation, including nonbonding electrons and formal charges Do draw in the leaving group as well as the main organic product, adn show the lone pairs and formal charge on the leaving group.

Answers

A graphic showing curved arrows pointing to the catalyst surface of the provided SN2 reaction to represent the passage of electrons cannot be produced since the statement is not complete.

When drawing in the leaving group and the major organic product, as well as showing the lone pairs with formal charges on the leaving group, the product species should be used to demonstrate the balanced equation, nonbonding electrons, and formal charges.

What do lone pairs mean?

Lone pairs are those valence electrons in a covalent connection that are not shared with another atom.

One bond is ruptured and another is completed in one step in a chemical reaction known as an SN2 reaction.

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how to build 6 individual atoms?

Answers

The 6 models of the atom:

1. John Dalton's atomic model: Daltons Billiard Ball (Solid Sphere) Model

2. J.J. Thomson's model: Plum Pudding model

3. Ernest Rutherford's model: Nuclear model

4. Niels Bohr's model: Planetary model

5. Erwin Schrdinger's model: Electron Cloud Model/Quantum Model

6. Wave mechanical model

Atom

The smallest component that makes up a chemical element is an atom. Atoms that are neutral or ionized are the building blocks of all solids, liquids, gases, and plasma. A normal atom is 100 picometers across, which is incredibly small. Because of quantum effects, they are so small that it is impossible to predict their behavior with sufficient precision using classical physics, as if they were, say, tennis balls. One or more electrons are attached to the nucleus of every atom, which is made up of a nucleus. Protons and neutrons, in various numbers, make up the nucleus. Neutrons exist only in the most prevalent type of hydrogen. An atom's nucleus makes up more than 99.94% of its mass.

how to build 6 individual atoms?

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What color are the stars on the diagram with the lowest surface temperatures?

What color are the stars on the diagram with the lowest surface temperatures?

Answers

Answer:

red supergiants is the answer

If you react 59.54 g of S and 78 g of HNO3, how many grams of NO2 can you
theoretically produce?
S + 6 HNO3 + H2SO4 + 6 NO2 + 2 H2O

Answers

Answer:

56.94759 grams of NO2

Explanation:

Stoichiometric Equation:

1 S + 6 HNO3 → 1 H2SO4 + 6 NO2 + 2 H2O.

This is so you can create ratios between each compound in the reaction, and identify the limiting and excess reactants to determine exactly how much can be produced?

The coefficients or molecular quantity of each compound in the balanced equation represents the amount of moles.

To figure out how much can be produced, you have to convert 59.54 g of S into moles of S and 78 g of HNO3 into moles of HNO3.

A reference such as a periodic table can be very helpful as it has the atomic mass of each element which is the mass with respect to 1 mol of that element.

what are two ways in which minerals can form from a solution? read more >>

Answers

Evaporation and crystallization are two common processes by which minerals form from a solution. Here option C is the correct answer.

When a solution containing dissolved minerals is left undisturbed, the water content of the solution gradually decreases through evaporation. As the water evaporates, the concentration of dissolved minerals increases, eventually reaching a point where the solution becomes supersaturated.

At this stage, the excess minerals start to come together and form solid crystals. This process is known as crystallization. Evaporation and crystallization commonly occur in environments with high rates of evaporation, such as hot and arid regions or shallow bodies of water.

Examples of minerals formed through evaporation and crystallization include halite (rock salt), gypsum, and borax. These minerals often precipitate and accumulate in layers, forming distinctive sedimentary deposits.

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Complete question:

Which of the following are two ways in which minerals can form from a solution?

A) Sublimation and condensation

B) Fusion and solidification

C) Evaporation and crystallization

D) Oxidation and reduction

what is the hydronium-ion concentration of a 0.210 m oxalic acid, h2c2o4, solution? for oxalic acid, ka1

Answers

The hydronium-ion concentration of a 0.210 m oxalic acid solution is 0.205 M.

How to calculate the hydronium ion concentration of a solution?

The hydronium-ion concentration of a solution of oxalic acid (\(H_{2}C_{2}O_{4}\) ) can be calculated using the acid dissociation constant (Ka) for the first dissociation step (Ka1) of oxalic acid, which is 5.90 x \(10^{-2}\) at 25°C.

The balanced chemical equation for the dissociation of oxalic acid in water is:

\(H_{2}C_{2}O_{4}\) (aq) + \(H_{2}O\) (l) ⇌ \(H_{3}O^{+}\) (aq) + \(HC_{2}O_{4}^{-}\) (aq)

Oxalic acid has two dissociation constants (ka1 and ka2), but we are only given ka1, which is 5.90 × \(10^{-2}\). This constant is used to find the concentration of H+ ions produced by the first dissociation step of oxalic acid:
ka1 = [H+][C2O4 2-] / [\(HC_{2}O_{4}^{-}\)]

We can assume that the concentration of [\(C_{2}O_{4}^{2-}\)] is negligible compared to [\(HC_{2}O_{4}^{-}\)] and [H+], so we can simplify the equation to:

ka1 = [H+]^2 / [\(HC_{2}O_{4}^{-}\)]

Solving for [H+], we get:

[H+] = sqrt(ka1 x [\(HC_{2}O_{4}^{-}\)])

Plugging in the given concentration of oxalic acid (0.210M), we get:

[H+] = sqrt(5.90 × \(10^{-2}\) x 0.210) = 0.205 M

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What is the pH of a solution that contains 20.0% acetic acid and
80.0% sodium acetate by concentration?
Hint: The pKa of acetic acid is 4.76.

Answers

The pH of the solution is 5.23.

The pH of a solution that contains 20.0% acetic acid and 80.0% sodium acetate by concentration can be calculated using the Henderson-Hasselbalch equation.

The equation is given by:

pH = pKa + log([A-]/[HA])Where:

pKa = 4.76[A-] is the concentration of the acetate ion

[HA] is the concentration of the acetic acid ion

pH is the solution pH

We can obtain [HA] and [A-] using the percentages given.

Since the percentages given are by weight, we can assume that the total weight of the solution is 100g.

Then we can find the masses of acetic acid and sodium acetate in the solution.

Mass of acetic acid = 20.0% of 100g = 20g

Mass of sodium acetate = 80.0% of 100g = 80g

The molar masses of acetic acid and sodium acetate are:

Acetic acid = 60.05 g/mol

Sodium acetate = 82.03 g/mol

Using the mass and molar mass, we can find the number of moles of each substance:

For acetic acid:20 g / 60.05 g/mol = 0.333 mol

For sodium acetate:80 g / 82.03 g/mol = 0.976 mol

The total number of moles in the solution is:

0.333 mol (acetic acid) + 0.976 mol (sodium acetate) = 1.309 mol

We can use this to find the molarities of acetic acid and acetate ion:

Acetic acid molarity = 0.333 mol / 0.100 L = 3.33 M

Acetate ion molarity = 0.976 mol / 0.100 L = 9.76 M

Now we can plug these values into the Henderson-Hasselbalch equation:

pH = 4.76 + log([9.76]/[3.33])pH = 4.76 + log(2.935)pH = 4.76 + 0.467pH = 5.23

Therefore, the pH of the solution is 5.23.

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a) C8H18
Name the organic compound

Answers

Answer:

Explanation:

Octane

Octane is a straight chain alkane composed of 8 carbon atoms.

.Which of the following is not a part of Dalton's atomic theory?
A
All matter is composed of indivisible atoms.
B
The properties of atoms of the same element can be different.
C
Compounds form when atoms combine in whole number ratios.
D
An atom can neither be created nor destroyed.

Answers

The answer is B - The properties of atoms of the same element can be different. This is not a part of Dalton's atomic theory. According to Dalton's atomic theory, all matter is composed of indivisible atoms, compounds form when atoms combine in whole number ratios, and an atom can neither be created nor destroyed.
Your answer: B - The properties of atoms of the same element can be different.

This statement is not a part of Dalton's atomic theory, as according to his theory, atoms of the same element have the same properties.

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how many electrons should be shown in the lewis dot structure for hydrogen?

Answers

The Lewis dot structure for hydrogen should show one electron. Hydrogen (H) has one electron in its outermost energy level, known as the 1s orbital.

In the Lewis dot structure, also known as the Lewis structure or electron dot structure, the valence electrons of an atom are represented by dots placed around the atomic symbol.

Hydrogen (H) has one electron in its outermost energy level, known as the 1s orbital. Therefore, in the Lewis dot structure for hydrogen, we represent this lone valence electron as a single dot placed next to the atomic symbol H. Since hydrogen has only one electron, only one dot is shown in its Lewis dot structure.

The Lewis dot structure for hydrogen is H •

The dot represents the single valence electron of hydrogen.

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The following properties are either physical or chemical. Which one is different from the rest, based on those two categories ?
A. Boiling Point
B. Flammability
C. Magnetism
D. Thermal conductivity

Answers

Answer:

B. Flammability

I know because I am a chemistry FLVS student

I left explanations just in case you wanted to know why.

Explanation:

I have seen no one with the correct answer so I'm here to help

A. Boiling point- this is a physical property if you boil water, it evaporates it is still water just a different form, the molecules inside are the same just arranged differently making it a physical property.

B. Flammability- this is a chemical property. Flammability is a chemical property. It describes how easily a substance can be set on fire. This is very important when it comes to building safety.

C. Magnetism- this is a physical property. This is an intensive physical property. a physical property that is not dependent on sample size. Magnetism, density, melting and boiling points, and color are classified as intensive physical properties. Intensive properties do not depend on the size of the sample. No matter how much or how little of the substance you have, an intensive physical property stays the same.

D. Thermal conductivity- this is a physical property. The ability of a substance to conduct an electrical charge or heat is measured by conductivity. It is a physical property because the identity of the substance used is not changed i.e. no change in chemical composition. It just transmits the form of energy, such as electricity or heat.

.
Which sequence is most correct?
galaxies began to form; stars were born in galaxies; planetary systems (like the solar system) formed around some stars; dust and gases in space drawn together by gravity
dust and gases in space drawn together by gravity; planetary systems (like the solar system) formed from dust and gases around some stars; galaxies began to form; stars were born in galaxies
dust and gases in space drawn together by gravity; galaxies began to form; stars were born in galaxies; planetary systems (like the solar system) formed around some stars
dust and gases in space drawn together by gravity; stars were born in galaxies; galaxies grew from dust and gas clouds; planetary systems (like the solar system) formed around some stars

(its actually not chemistry its science)

Answers

dust and gases in space drawn together by gravity; galaxies began to form; stars were born in galaxies; planetary systems (like the solar system) formed around some stars

Describe the change that you made that led to the increase in the size of the clawcat population. Explain why the change led to an increase in the clawcat population size.

Answers

The first step is to lessen the number of the organism which consumes clawcats. The second is to enhance the resources Clawncat requires to live.

What is population?

Population is the total number of people living in a region (such as a nation or the planet), which is always changing due to births, immigration, and natural mortality.

There are two ways to boost the Clawcat population. The first step is to lessen the number of the organism which consumes clawcats. The second is to enhance the resources Clawncat requires to live, namely by expanding the plantation of Clawncat, providing enough irrigation, giving full access to sunshine, and increasing the richness of the soil through proper and effective fertilization.

Therefore, in the above given ways we can increase the population of Clawncat.

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a 2.5000 g sample of epsom salt (maghesiun sulfate hydrate) is heated until the crystals arereduced to a dry powder. after cooling the residue was found to weigh 1.7525 g. calculate g

Answers

The mass of the water of crystallization is 0.7475 g.

What is the mass of the water?

We know that a hydrated compound is a compound that contains in it the water of crystallization. This is the water that becomes attached to the structure of the compound that is in question.

In this case, we have that the salt that is question is a hydrate of magnesium sulfate and we have.

Mass of the hydrated salt =  2.5000 g

Mass of the anhydrous salt =  1.7525 g

Mass of water present = 2.5000 g - 1.7525 g

= 0.7475 g

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Missing parts;

A  2.5000 g sample of epsom salt (maghesiun sulfate hydrate) is heated until the crystals arereduced to a dry powder. after cooling the residue was found to weigh 1.7525 g. calculate the mass of the water.

describes a chemical weathering process where the products are typically . oxidation / coal beds hydrolysis / clay minerals precipitation / dissolved bicarbonate ions dissolution / iron oxides (hematite)

Answers

Answer: The chemical weathering process that dissolves iron oxides (hematite) is called dissolution.

What is chemical weathering?

Chemical weathering is the process by which rocks and minerals are broken down by chemical reactions. This kind of weathering transforms the original composition of rocks and minerals into new compounds that are more stable at the Earth's surface. Chemical weathering can change the overall appearance, strength, and porosity of rocks over time.

Types of chemical weathering processes Chemical weathering processes can take a variety of forms, such as: Hydrolysis ,Oxidation, Carbonation ,Dissolution.

Students must keep in mind that these processes may occur simultaneously in a specific area to produce new minerals with varied properties. And among the different chemical weathering processes, the one that dissolves iron oxides (hematite) is called dissolution.

What is dissolution?

The process in which a chemical compound is dissolved in a solvent is known as dissolution. It is a physical change rather than a chemical change since the chemical composition of the substance being dissolved is not altered. Dissolution is used in many processes, such as extracting and separating minerals, preparing solutions, purifying liquids, and so on.


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A sample of gas has a pressure of 600 volume of 2.5 L, and a temperature of 22°C . If the pressure is changed to 760 mmHg and the volumes changed to 1.8L what will the new temperature be in K?
A) -4K
B)269K
C)-8K
D)435K

Answers

it is A it got to be A)-4k

Explanation:

What is the mass number of hydrogen? DUE TODAY!!!!

Answers

1.00784 u ... it’s on google

Compared to the atom of calcium -40, an atom of potassium - 39 contains fewer ______,

Answers

Protons (the number on the right of calcium-40 represents number of protons). The tiniest component of ordinary matter, an atom, makes up a chemical element.

Neutral or ionized atoms make up every solid, liquid, gas, and plasma. Atoms typically have a diameter of 100 picometers or less. Due to quantum effects, they are so small atoms that it is impossible to precisely anticipate their behavioral using traditional physics, as if they were tennis balls, for example.

The positively charged particles called protons are found in the hydrogen atom's nucleus. Protons, electrons, and neutrons are the building blocks of an atom. An atom's nucleus, which is located in the middle, contains all of its mass.

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When alkaline hydrolysis was first invented what jobs were people hiring to do?

Answers

When alkaline hydrolysis was first invented, people were hired for various roles related to the process and implementation of this technology. Some of the jobs that emerged include Chemical engineers, Technicians and operators, Waste management specialists, Scientists and researchers.

Chemical engineers: These professionals played a crucial role in developing and optimizing the alkaline hydrolysis process. They were responsible for designing the equipment, developing the necessary chemical reactions, and ensuring the efficient operation of the system.

Technicians and operators: Skilled technicians and operators were hired to operate and maintain the alkaline hydrolysis equipment. They were trained to monitor the process parameters, handle the chemicals involved, and ensure the proper functioning of the system.

Waste management specialists: With the introduction of alkaline hydrolysis as a method for disposal of organic waste, specialized professionals in waste management were employed to oversee the proper handling and treatment of the waste materials. They were responsible for implementing safety protocols, managing waste streams, and complying with environmental regulations.

Scientists and researchers: Alkaline hydrolysis required scientific expertise for continuous improvement and innovation. Scientists and researchers were hired to study the process, analyze the results, and explore potential applications in various fields such as biofuel production and chemical synthesis.

Overall, the introduction of alkaline hydrolysis created employment opportunities for professionals in engineering, chemistry, waste management, and research, among others, as this technology gained recognition and adoption.


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What is the coefficient of the permanganate ion when the following equation is balanced? mno4- br- → mn2 br2 (acidic solution)

Answers

In acidic solition, the coefficient of permanganate ion in the balanced redox equation is 2.

How can a redox equation be balanced?

A redox equation showing a reduction and an oxidation reaction occurring simultaneously.

To balance redox equations, the atoms reacting as well as the electrons transferred are balanced.

In the reaction of permanganate ion and bromide ion in acidic solution, the balanced redox equation is given as follows:

2 MnO4- + 10Br- + 16 H+ → 2 Mn2+ 5 Br2 + 8 H2O

Therefore, the coefficient of permanganate ion in the balanced redox equation is 2.

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The coefficient of the permanganate ion of the MNO₄ - Br- → MN₂ + Br₂ is 2.

What is a redox reaction?

A redox equation depicting a simultaneous reduction and oxidation reaction.

The atoms reacting as well as the electrons transferred must be balanced to balance redox equations.

The balanced redox equation for the reaction of permanganate ion and bromide ion in acidic solution is:

\(\rm 2 MnO_4- + 10Br^- + 16 H^+ \rightarrow2 Mn_2+ 5 Br_2 + 8 H_2O\)

Thus, the coefficient of the permanganate ion of the MNO₄ - Br- → MN₂ + Br₂ is 2.

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If you add 5.0 mL of 0.50 M NaOH solution to 20.0 mL to Buffer C, what is the change in pH of the buffer? (where buffer C is 8.203 g sodium acetate with 100.0 mL of 1.0 M acetic acid)

Answers

The initial pH of the buffer is not given, we cannot determine the exact change in pH. The final pH of the buffer after adding NaOH is 4.762.

To determine the change in pH of buffer C after adding 5.0 mL of 0.50 M NaOH solution, we first need to calculate the moles of acetic acid and sodium acetate in the buffer. Then, we will calculate the moles of NaOH added and finally use the Henderson-Hasselbalch equation to determine the change in pH.

1. Calculate moles of acetic acid and sodium acetate:
Buffer C has 8.203 g of sodium acetate and 100.0 mL of 1.0 M acetic acid.
Moles of sodium acetate = (8.203 g) / (82.03 g/mol) = 0.1 mol
Moles of acetic acid = (100.0 mL) * (1.0 mol/L) = 0.1 mol

2. Calculate moles of NaOH added:
Moles of NaOH = (5.0 mL) * (0.50 mol/L) = 0.0025 mol

3. Determine moles of acetic acid and sodium acetate after the reaction:
NaOH will react with acetic acid, producing water and sodium acetate.
Moles of acetic acid after reaction = 0.1 mol - 0.0025 mol = 0.0975 mol
Moles of sodium acetate after reaction = 0.1 mol + 0.0025 mol = 0.1025 mol

4. Calculate the new pH using the Henderson-Hasselbalch equation:
pH = pKa + log ([sodium acetate] / [acetic acid])
The pKa of acetic acid is 4.74.
pH = 4.74 + log (0.1025 mol / 0.0975 mol) = 4.74 + 0.022 = 4.762

5. Determine the change in pH:
Since the initial pH of the buffer is not given, we cannot determine the exact change in pH. However, the final pH of the buffer after adding NaOH is 4.762.

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a solution containing a mixture of metal cations was treated as outlined. dilute hcl hcl was added and no precipitate formed. h2s h 2 s was bubbled through the acidic solution. a precipitate formed and was filtered off. the ph was raised to about 9 9 and h2s h 2 s was again bubbled through the solution. a precipitate formed and was filtered off. finally, sodium carbonate was added to the filtered solution and no precipitate formed. what can be said about the presence of each of these groups of cations in the original solution?

Answers

The tests suggest that the original solution contains Group 2 cations (Zn²⁺, Cd²⁺, Pb²⁺), Group 3 cations (Fe³⁺), and possibly Group 4 cations (Ni²⁺, Co²⁺), but does not contain Group 1 cations, Group 2 cations (Mg²⁺), Group 3 cations (Al³⁺), Group 4 cations (Mn²⁺), or Group 5 cations (Cu²⁺).

No precipitate formed when dilute HCl was added, indicating the absence of Group 2 cations (Ca²⁺, Sr²⁺, Ba²⁺) and Group 3 cations (Al³⁺). When H₂S was bubbled through the acidic solution, a precipitate formed and was filtered off. This indicates the presence of Group 2 cations (Zn²⁺, Cd²⁺, Pb²⁺), Group 3 cations (Fe³⁺, Al³⁺), and Group 4 cations (Ni²⁺, Co²⁺, Mn²⁺).

The pH was raised to about 9 and H₂S was bubbled through the solution again. Another precipitate formed and was filtered off. This indicates the presence of Group 4 cations (Ni²⁺, Co²⁺) and Group 5 cations (Cu²⁺). Finally, sodium carbonate was added to the filtered solution and no precipitate formed, indicating the absence of Group 1 cations (Li⁺, Na⁺, K⁺), Group 2 cations (Mg²⁺, Ca²⁺, Sr²⁺, Ba²⁺), Group 3 cations (Al³⁺), Group 4 cations (Ni²⁺, Co²⁺, Mn²⁺), and Group 5 cations (Cu²⁺).

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Question 1Warehouse management system (WMS) is essential in warehouseoperation. This is complemented by the Automated Storage andRetrieval System (ASRS) and Autonomous Mobile Robot (AMR) forklift, Since the concept of the self is all about how humans view themselves, this concept is interesting to both sociologists anda)cardiologists.b)geologists.c)economists.d)psychologists. Which term applies to the 20 permanent committees of the House? 14y=84there's 2 boxes in the bottom sasha is the manager of a sales team in a corporation. all sales calls made by her subordinates to customers and clients are recorded for quality check purposes. on the basis of their call performance, they get rewarded. this is an example of . a. bureaucratic control b. objective control c. concertive control d. normative control An airplane is heading north at an airspeed of 700 km/hr, but there is a wind blowing from the northwest at 50 km/hr. The plane will end up flying___degrees off courseThe plane's speed relative to the ground will be __km/hr In a defined-benefit plan, the process of funding refers toa. determining the projected benefit obligation.b. determining the accumulated benefit obligation.c. making the periodic contributions to a funding agency to ensure that funds are available to meet retirees' claims.d. determining the amount that might be reported for pension expense. Can someone plz help me with this one problem plzzzzz Im being timed!!! When you push against a wall with your fingers, they bend. Identify the force or forces involved. Two firms produce and sell premium Alphonso mangoes. The two firms compete simultaneously in quantities. Both Firm 1 and Firm 2 produce with the same cost function: TC (Q1)=20+30Q1 and TC2(Q2=20+30Q2. Demand for the mangoes follows P=60-(1/2)Q, where Q = Q1+Q2.What quantity of mangoes does Firm 1 produce? What quantity does firm 2 produce? What are the profits to Firm 1? Profits to Firm 2? Help me with this question!! The height in feet of a skydiver t seconds after deploying her parachute is given by h = -30t+ 1000. A ball is thrown up toward the skydiver, and after t seconds, the height of the ball in feet is given by h =-16t^2 + 100t. Determine when the ball reaches the skydiver. a researcher at a large university is examining the relationship between substance abuse and religiosity. the researcher is drawing the sample from the college campus that they work at and has access to student email. the researcher would like to draw a sample of 400 students from the student population. which survey type would be best suited for this study? A college student visits a large number of randomly selected stores in a city and in nearby small towns to collect data about the cost of bread.His theory is that the cost of bread is more variable in the city than in the small towns.In the city, the sample MAD was 0.65, while in the small towns the sample MAD was 0.63.Assuming there are no outliers or skew, do the results support the student's theory?Select from the drop-down menus to correctly complete the statements.Since the samples were large and randomly chosen, we can use the samples to understand the populations.Because the sample MAD in the city is Choose... the sample MAD in the small towns, the results Choose... support the student's theory. a) One problem that all respiring organisms share is the need for biological structures that allow efficient uptake of oxygen and removal of carbon dioxide. Two types of structures that have evolved for carrying out gas exchange are gills and lungs. The table below lists organisms according to the type of structure they use for gas exchange.Describe the general process of gas exchange that occurs between a gill or lung and the surrounding environment. Describe three similarities in the structures of gills and lungs that help ensure high efficiency of gas exchange. Explain why one group of organisms evolved to have gills while the other group evolved to have lungs. Include in your explanation a discussion about the two groups of salamanders shown in the table. Describe the probable characteristics of the gas exchange structure present in a common ancestor of all of the organisms listed in the table. Explain how evolution played a role in the development of the gill and the lung.2) All animals must solve the problem of nitrogen waste excretion in order to maintain homeostasis. There are three basic types of nitrogen waste products that animals produce: ammonia, urea, or uric acid. Aquatic animals tend to produce ammonia, whereas terrestrial animals tend to produce either urea or uric acid. Explain why nitrogen excretion is an important aspect of animal homeostasis. Explain how the types of nitrogen excretion, their energy requirements, and habitat are related. Explain how the three animals listed in the table above provide an example of how a group of animals can show continuity due to common ancestry as well as divergence due to adaptation to different environments.