is a straight chain, a linear chain and an unbranched chain the same thing?
Answers
Answer:
All carbon atoms can be connected to a continuous chain in the straight-chain alkane. In alkanes of a branched-chain, all carbon atoms cannot be connected to a continuous chain as a branch or side chain is part of the carbon chain.
Explanation:
Related Questions
10. Which statement best describes evidence that a chemical reaction occurs as a cake bakes?
A The water in the cake evaporates.
B The cake rises as gas bubbles form in the baking cake.
C The cake takes the shape of the container in which it is baked.
D The water in the cake batter is used to keep the cake moist as it bakes.
Answers
Answer:
B.The cake rises as gas bubbles form in the baking cake preferably carbon dioxide
you have samples of each of the following gases, all at 25 °c and one atmosphere pressure. which sample has the lowest density?
a. Ammonia
b. Argon
c. Carbon dioxide
d. Nitrogen dioxide
e. Oxygen
Answers
Answer:
Yeah. Mhm. So on this question, it asked about finding the highest density for a few gasses all at the same temperature. And since gasses will all have the same volume, if they have the same number of moles, your density would be The mass of each over the volume of 25°C. Now the volume of 0°C is 22.4. In order to find the volume at 25°C, you could do PV Equals NRT and plug in one mole, 25°C Plus 2 73. Right to get to Calvin's. Um The pressure value which I don't believe was given in the question of one atmosphere of pressure. Okay, so one atmosphere of pressure, the R value and atmospheres and then you would find the volume. Each of them. You would take their molar mass over that volume. Or if all you want to do is rank them. The highest molar mass would be the most dense. So if you needed the actual density, okay, you would do the molar mass Over the volume. For one mole, each gas would have the same volume. But if all you have to do is rank them. The one with the highest molar mass is the most ends and the one with the lowest molar mass would be the least ends.
Explanation:
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which of the following groups most prefers to be in the equatorial position of the cyclohexane chair conformation? a. -h b. -ch3 c. -ch(ch3)2 d. -c(ch3)3
Answers
Answer:
Any group larger than hydrogen is more stable at the equatorial position. Thus, option D is correct.
Explanation:
The equatorial bonds of cyclohexane are those that extend from the perimeter of the ring.
When groups are axial, the dispersion forces between them are repulsive and thus unstable. There is generally less repulsion when any group larger than hydrogen is equatorial rather than axial and thus more stable.
When one ring substituent group is larger than the other, the larger group equatorial will be more stable due to steric and spacial reasons.
Thus option D is correct which is tertiary and the largest group of all.
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Please help me I need to finish before my class is over
Answers
Number 3 is D
Number 4 is B
Number 5 is B
I think
Answer:
Number 5 is b is the correct answer
Potassium metal reacts with chlorine gas to form solid potassium chloride. Answer the following:
Write a balanced chemical equation (include states of matter)
Classify the type of reaction as combination, decomposition, single replacement, double replacement, or combustion
If you initially started with 78 g of potassium and 71 grams of chlorine then determine the mass of potassium chloride produced.
Answers
The reaction between pottasium metal and chlorine gas is a combination reaction and it is as follows;
2K + Cl₂ → 2KCl
What is a chemical reaction?A chemical reaction is a process involving the breaking or making of interatomic bonds, in which one or more substances are changed into others.
A chemical reaction is said to be a combination reaction when two or more atoms are joined together to form a compound. An example is the reaction of pottasium metal and chlorine gas to produce pottasium chloride as follows:
2K + Cl₂ → 2KCl
In the above equation, two elements; pottasium chemically combines with chlorine to form a compound; pottasium chloride.
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Which group in the periodic table contains the three elements with the highest
electrical conductivities?
OA) Group 8
B) Group 12
C) Group 11
D) Group 7
Answers
Answer:
Group 12
Explanation:
Group 12 is also called a transition metal group. This group in the periodic table lies in between the groups or tables. These metals are classified as the transition metal in the table.
These metals are found from the group number 3 to 12. In the periodic table, These transition elements are ductile and malleable. These metal conduct heat and electricity.
These elements are generally called dense and less to react to the alkaline metal. Iron, copper-silver, gold is the most important transition metal.
Answer:
Group 11
Explanation:
Pf
calculate the number of moles of magnesium, chlorine, and oxygen atoms in 2.70 moles of magnesium perchlorate, mg(clo4)2 .
Answers
The number of moles of magnesium, chlorine, and oxygen atoms in 2.70 moles of magnesium perchlorate is 2.70, 5.40, 21.60.
The formula of the compound is Mg(ClO4)2.
From the formula, we can see that 1 molecule of Mg(ClO4)2 contains 1 atom of Mg, 2 atoms of Cl and 8 atoms of O.
So 2.70 mol Mg(ClO4)2 contains
1 * 2.70 mol Mg = 2.70 mol Mg
2 * 2.70 mol Cl = 5.40 mol Cl
8 * 2.70 mol O = 21.60 mol O
So, the required answer is 2.70, 5.40, 21.60.
Therefore, the number of moles of magnesium, chlorine, and oxygen atoms in 2.70 moles of magnesium perchlorate is 2.70, 5.40, 21.60.
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the _____ functional group can always be found in a carbohydrate molecule.
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Carbohydrates usually contain a carbonyl (=O) and hydroxyl (−OH) functional group.
Carbonyl (=O) and hydroxyl (=OH) functional groups are typically present in carbohydrates. In polysaccharides, where the hydroxyl groups typically establish hydrogen bonds with the carbonyl groups, the carbonyl group joins with a carbon atom to form a ring structure. Amino, carboxyl, and R are the functional groups found in proteins (variant). Note: Complex assemblies are created when proteins interact with other biological macromolecules and one another.
Based on the functional monomer found in carbs, this classification was created. Ketone and aldehyde serve as monomers in carbohydrates. That suggests that carbs are divided into aldose and ketose. Depending on how many carbon atoms there are, carbohydrates can be divided into numerous categories.
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Rocks created from the cooling of magma or lava are called
Group of answer choices
sedimentary
metamorphosis
igneous
metamorphic
Answers
Answer:
igneous rock
Explanation:
when magma or lava is erupted from earth crust (volcanic eruption) extrusive igneous rock is formed when the magma or lava cools down
Use the periodic table to determine the electron configuration for Cl and Y in noble-gas notation.
Cl:
A. ) [He]2s22p63s23p5
B. ) [Ne]3s23p4
C. )[Ar]3s23p5
D. )[Ne]3s23p5
Answers
The correct electron configuration for Cl in noble-gas notation is option D, [Ne]₃s²³p⁵.
This notation indicates that the electron configuration of Cl is the same as that of the noble gas neon ([He]₂s²²p⁶), except for the three additional electrons in the 3rd shell, occupying the 3s and 3p orbitals.
The electron configuration for Y in noble-gas notation can be determined by finding the noble gas that precedes Y in the periodic table, which is Kr. The electron configuration for Kr is [Ar]₃d¹⁰⁴s²⁴p⁶
Yttrium (Y) has an atomic number of 39, which means it has 39 electrons. The electron configuration for Y in noble-gas notation is therefore:
[Kr]₅s²⁴d¹
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describe what gas pressure is. explain how concentration and temperature both effect gas pressure in a sealed container.
Answers
Gas pressure can be described as the force exerted per unit area by gas molecules as they collide with the surface of a container. It is a measure of the average kinetic energy of the gas molecules.
The pressure of a gas depends on several factors including the temperature, the volume, and the number of gas molecules present in a container. Changes in temperature and concentration can have an effect on gas pressure within a sealed container.Concentration can affect gas pressure because increasing the number of gas molecules in a container will result in more collisions and a greater force being exerted on the container walls. The pressure of the gas will increase. If the concentration of gas molecules decreases, then there will be fewer collisions and the pressure of the gas will decrease.Temperature is another important factor that can affect gas pressure. According to Charles' Law, if the temperature of a gas increases, then the volume of the gas will also increase. This is because the gas molecules will be moving faster and will require more space to move around in. The pressure of the gas will increase. An increase in concentration or temperature will lead to an increase in gas pressure, while a decrease in concentration or temperature will lead to a decrease in gas pressure.For such more questions on Gas pressure
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Within the textbook, the idea that goods would be equally distributed if the distributor was not allowed to know of his/her status or position is referred to as _____________.
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Within the textbook, the idea that goods would be equally distributed if the distributor was not allowed to know of his/her status or position is referred to as the veil of ignorance.
This concept, introduced by philosopher John Rawls, suggests that in a just society, individuals should make decisions about the distribution of resources and opportunities without any knowledge of their own advantages or disadvantages in that society.
The veil of ignorance serves as a thought experiment to encourage impartiality and fairness, as decision-makers would be motivated to create a system that benefits everyone, regardless of their personal circumstances, ensuring a more equitable distribution of goods.
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this rock above contains many large (2-5cm across) phenocrysts that are salmon pink. which mineral is this?
Answers
Phenocrysts are the kind of feldspar minerals.
A mineral is an detail or chemical compound that is normally crystalline and that has been shaped because of geological techniques. Examples include quartz, feldspar minerals, calcite, sulfur and the clay minerals inclusive of kaolinite and smectite.
A clearly going on inorganic element or compound having an. orderly internal shape and feature chemical composition, crystal form, and physical. properties. Minerals range from rocks, which are certainly happening solids composed of 1 or more minerals.
Minerals are labeled based totally on their crystal shape and chemistry. Minerals are divided into two types particularly steel and non-metal.
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he half-life of a radioactive substance is 21 years. If we begin with a sam substance, calculate the value of b to complete the model belo which gi sample remaining after t years. f(t)=85⋅(b) t
Enter your answer for b in the box below, rounded to three decimals.
Answers
The value of b in the equation \(\( f(t) = 85 \cdot b^t \)\) represents the decay factor of the radioactive substance. To determine the value of \( b \), we can use the information that the half-life of the substance is 21 years.
The half-life of a radioactive substance is the time it takes for half of the substance to decay. In this case, the half-life is 21 years, which means that after 21 years, the amount of the substance remaining will be half of the initial amount.
We can use this information to set up an equation:
\(\(\frac{1}{2} = b^{21}\)\)
To solve for b, we need to take the 21st root of both sides of the equation:
\(\(b = \left(\frac{1}{2}\right)^{\frac{1}{21}}\)\)
Using a calculator, we can evaluate this expression:
\(\(b \approx 0.965\)\)
Therefore, the value of b in the equation \(\( f(t) = 85 \cdot b^t \)\) is approximately 0.965.
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Write the scientific term "A number used by Bohr in the explanation of the spectrum of hydrogen atom and designated by the symbol (n) " ?
Answers
Answer:
Quantum number
Explanation:
Enter your answer in the provided box. calculate the ph of a 0. 39 m ch3cooli solution. (ka for acetic acid = 1. 8 × 10−5. )
Answers
The pH of the solution is the negative logarithm of a proton or the hydrogen ion concentration. The pH of 0.39 M acetic acid solution (CH₃COONa) is 2.58.
What is pH?The pH has been said to be the hydrogen ion concentration that can also be given by the pOH.
Given,
The acid dissociation constant Ka = 1.8 × 10⁻⁵
Concentration of acetic acid (C) = 0.39 M
The hydrogen ion concentration from Ka and molar concentration are calculated as:
H⁺ = √ Ka × C
= √1.8 × 10⁻⁵ × 0.39
= √0.00000702
= 0.0026
Now, pH from hydrogen ion is calculated as,
pH = - log [H⁺]
= - log [0.0026]
= 2.58
Therefore, the pH of acetic acid is 2.58.
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which element has a grater atomic radius ?phosphorus or bismuth?
Answers
According to periodic trends, bismuth has the greatest atomic radius.
How can the wetland reduce flooding and what impact could this have on future generations?
Answers
Answer:
Wetlands trap the surface water, snowmelt, rain, groundwater, and flood water. They then slowly release the water. Wetland vegetations like trees and root mats also help in controlling the speed of flood water and release it slowly on the floodplain.
Explanation:
4. Which of the following is not an example of a disturbance that might jumpstart
secondary succession?
a. An ecosystem being destroyed by pollution.
b. A long period of little or no rainfall resulting in a drought.
C. A hurricane causing a devastating flood.
d. A volcano forming a new island in a chain.
Answers
Answer: D: a volcano forming a new island in a chain
Explanation:
please help me.......
Answers
Answer:
D as in :D lol
Non-ferrous metal is NOT hardenable by heat treatment; it must
gain strength through a process such as tempering. Is this
statement TRUE or FALSE?
Group of answer choices
True
False
Answers
The statement is FALSE. Non-ferrous metals can be hardened by heat treatment, although the mechanisms and processes involved may differ from ferrous metals.
Heat treatment techniques such as precipitation hardening can be used to increase the strength of non-ferrous metals. Non-ferrous metals are metals or alloys that do not include iron (or iron allotropes, such as ferrite, etc.) in significant quantities. Non-ferrous metals are employed because they have desired qualities like reduced weight (for example, aluminium), greater conductivity (for example, copper), non-magnetic characteristics, or corrosion resistance (for example, zinc), even though they are often more expensive than ferrous metals. In the iron and steel sectors, several non-ferrous materials are also employed. Bauxite, for instance, is used as a flux in blast furnaces, whereas wolframite, pyrolusite, and chromite are utilised to create ferrous alloys.
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lead can react with oxygen gas. If lead (IV) oxide is the product of the reaction, how would the reaction be classified
Answers
Answer:
this reaction is an oxidation reaction
The chemical reactions involving both oxidation and reduction are known as redox reactions. The oxidation involves the loss of electrons. The reaction of lead with oxygen is an example of oxidation reaction.
What is oxidation reaction?According to the classical concept, oxidation is defined as a process which involves the addition of oxygen or electronegative element or the removal of hydrogen or electropositive element.
During electron transfer, the species which loses electrons is said to be oxidized and the species which gains electrons is said to be reduced.
The lead (IV) oxide is the formula of PbO₂. Here the oxidation state of lead is +4. The lead (IV) oxide is used in manufacturing dyes and also used to make explosives. It is a corrosive outcome that can evolve in lead pipes that are used for drinking water.
The formation of lead (IV) oxide is given as:
Pb (s) + O₂ (g) → PbO₂ (g)
Thus the reaction is an oxidation reaction.
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The characteristic which distinguishes a true solid from other phases of matter at STP is that in a true solid the particles are 1 vibrating and changing their relative positions by vibrating without changing their relative positions 2 3 motionless but changing their relative positions 4 motionless without changing their relative positions.
Answers
Answer:
Background
Solids – relatively rigid, definite volume and shape. In a solid, the atoms and molecules are attached to each other. ...
Liquids – definite volume but able to change shape by flowing. In a liquid, the atoms and molecules are loosely bonded. ...
Gases – no definite volume or shape
Exactly 10.0 L of air -25°C is heated to 100.0°C. What is the new volume if the pressure is kept constant?
Answers
Answer: V2= 15.0403226 Liters
Explanation:
Use V1/T1=V2/T2
Make sure you change the degrees Celsius to Kelvin. (Kelvin = degrees Celsius +273)
10.0L / 248 K = V2/ 373 K
Cross multiply V1 and T2 and divide by T1
(10.0 L)( 373K)/ 248 K = V2
V2= 15.0403226 Liters (Kelvin cancels out)
A 60kg bucyclist going 2 m/s increased his output by 1800 j .what was his final velocity
Answers
Answer:
8
Explanation:
trust
In 1790, Nicolas Leblanc found a way to form Na₂CO₃ from NaCl. His process, now obsolete, consisted of three steps:2NaCl(s) + H₂SO₄(aq) & → Na₂SO₄(aq) + 2HCl(g)
Na₂SO₄(s) + 2C(s) & → Na₂S(s) + 2CO₂(g)
Na₂S(s) + CaCO₃(s) & → Na₂CO₃(s) + CaS(s)(c) Is the overall process spontaneous at standard-state conditions and 298 K?
Answers
The overall process is not spontaneous at standard-state conditions and 298 K.
How this is calculated?The entropy change of the cosmos is used to calculate the process to assess how spontaneous a response is. This process is spontaneous if Delta s is positive. Negative Delta S indicates a non-spontaneous process. ΔS sun iv=ΔS system+ ΔS surroundings The entropy at 500 degrees Celsius will be -13J/K×mol. The entropy at 700 degrees Celsius will be -5.8 J/K×mol. The subsequent melting of NaCl at standard-state circumstances and 298 K is not spontaneous because we know that there is a reduction and that Delta S is less than zero at both dimension temperatures.Hence, The overall process is not spontaneous at standard-state conditions and 298 K.
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After one week there was a white solid but no liquid in the dish. What had happened to the water in the dish?
Answers
Answer:
it disappeared loll jk
it obviously dried
well you may Mark me as brainliest
You have a substance with a half-life of 9 days. How much of it will be left after 36 days?
Answers
Answer:
A half life is the amount of time it takes for half of a mass of a given radioactive element to decay to something else. 36 days is 4 1/2 life cycles, so by running 1/2*4 , we get how much of the original substance would be left. That would be 1/16 of the original substance left.
Explanation:
Of course, this is not always perfect, and can vary. In addition, if less than 16 atoms of the original substance are present, there is instead a 1/16∗a chance of at least one remaining.
The amount of substance left after 39 days will be 1/16th of the original amount.
What is the half-life of a radioactive element?The half-life period of the radioactive material can be defined as the time required to reduce its actual amount to half after disintegration. The half-life period of a radioactive substance is independent of the initial amount of the substance.
Consider that N₀ is the initial amount of the substance
Consider that 'n' is the number of half-lives of given substance.
The time for which substance decay, t = 36 days
Half-life of substance (t½) = 9 days
t = n ×t½
36 = n × 9
n = 4 days
Assume that N is the amount of the substance after decay for 39 days.
N ×2⁴ = N₀
N × 16 = N₀
N = N₀/16
Therefore, one-sixteenth of the initial amount of the substance will be left after 39 days.
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The length of Mac’s bedroom is 3m 59cm. Dennis’ bedroom is 2m 89cm longer than Mac’s bedroom. How many centimeters long is Dennis’ bedroom?
Answers
Answer:
6m 48cm
Explanation:
First we can convert the length of Mac's bedroom to centimeters:
As 1 m is equal to 100 cm,
3m 59cm is equal to 300 cm + 59 cm = 359 cm.As for Dennis' bedroom's information:
2m 89cm = 289 cmNow we can calculate the length of Dennis' bedroom:
359 cm + 289 cm = 648 cmRewriting the answer leaves us with 6m 48cm.
How many Sodium (Na) atoms are in 6NaCl?
Answers
6 Sodium (Na) atoms are in 6NaCl.
Sodium chloride, NaCl, is composed of two elements: sodium (or Na) and chlorine (or Cl). A molecule of sodium chloride, NaCl, is made up of one sodium atom and one chlorine atom. As a result, each NaCl molecule has two atoms.
\(1\ molecule\ of\ NaCl=2\ atoms\\\\6\ molecule\ of\ NaCl=12\ atoms\\\\\)
So, 6 NaCl contains 12 atoms that is 6 Cl, and 6 sodium.
Hence, the answer is 6.
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