Which substance has the higher boiling point? Explain.
(a) CH₃OH or CH₃CH₃

I think that you should use your phone

The correct order of the increasing polarity of the analyte functional group isEthers < Esters.

The given statement is "Polarities of analyte functional group increase in the order of hydrocarbon ethers < esters."  The order of polarities of functional groups is the order of their increasing polarity (i.e., less polar to more polar) based on their electron-donating or withdrawing ability from the rest of the molecule.Polarity of analyte: The analyte's polarity is directly proportional to the dipole moment of the functional group, which is associated with a difference in electronegativity between the atoms that make up the functional group.The electronegativity of an element is its ability to attract electrons towards itself. The greater the difference in electronegativity between two atoms, the more polar their bond, and hence the greater the polarity of the molecule.

To find the correct order of the increasing polarity of the analyte functional group, let's first compare the two groups: hydrocarbon ethers and esters. Here, esters have a carbonyl group while ethers have an oxygen atom with two alkyl or aryl groups. The carbonyl group has more electronegative oxygen, which pulls electrons away from the carbon atom, resulting in a polar molecule. On the other hand, ethers have a less polar oxygen atom with two alkyl or aryl groups, making them less polar than esters. Therefore, the correct order of the increasing polarity of the analyte functional group isEthers < Esters.

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Answer:

no idea about this question sorry

Declining levels of trust in government are important because they have been linked to declines in political participation and voting.

When citizens lose trust in their government, they are less likely to participate in political activities such as voting, protests, and contacting elected officials. This can lead to a decrease in the overall democratic legitimacy of a government, as well as a lack of accountability for elected officials. Additionally, when citizens do not feel that their government represents their interests or values, they may become disillusioned and disengaged from the political process altogether. Therefore, it is crucial for governments to work to regain the trust of their citizens through transparency, accountability, and effective communication.

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Answer:

0.8833 mole of C3H8

Explanation:

Given:

Mass of C₃H₈ (Propane) = 38.95 gram

Computation:

Molar mass of C = 12.01

Molar mass of H = 1.008

Molar mass of C₃H₈ (Propane) = 3(12.01) + 8(1.008)

Molar mass of C₃H₈ (Propane) = 36.03 + 8.064

Molar mass of C₃H₈ (Propane) = 44.094

Number of mol in 38.95 gram Propane = Mass / Molar mass

Number of mol in 38.95 gram Propane = 38.95 / 44.094

Number of mol in 38.95 gram Propane = 0.88334

Answer:

Use the Periodic Table to find molar masses.

Propane (C3H8), a common fuel, reacts with oxygen to form carbon dioxide and water according to the equation below:

C3H8 + 5O2 → 3CO2 + 4H2O

If a propane heater burns 38.95 g C3H8, it consumes

38.95 mol C3H8.

0.8830 mol C3H8.

1 mol C3H8.

44.10 mol C3H8.

Part 2

How many moles of oxygen are required to produce 37.15 g CO2?

37.15 g CO2 = 1.407 mol O2

Part 3

What mass of propane is necessary to react with the amount of oxygen calculated in the previous question?

12.41   g C3H8    

Answer:

two ions can combine in only one combination.The number of ions is not fixed in a compound.

Answer:

Ground state means when n = 1

and here the electronic configuration is 2:8:2

Sister chromatids is the term for the chromosomes that are identical after DNA replication.

Sister chromatids are identical chromosomes that are created during the process of DNA replication. DNA replication is the process where a DNA strand is copied, creating a new strand. During this process, each chromosome is split in half, forming two identical halves.

These halves are known as sister chromatids and are held together by a centromere. Sister chromatids are attached to one another during the interphase stage of the cell cycle and are separated during the metaphase stage of the cell cycle.

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Answer:

Absolute Zero

Explanation:

at 0 Kelvin, nothing can move and entropy reaches 0

Answer:

absolute zero

Explanation:

The compound must be C2H5OH (ethanol).

To solve this problem, we need to use the law of conservation of mass, which states that the mass of the reactants must equal the mass of the products.

First, we need to calculate the total mass of the products:
50.28 g CO2 + 25.73 g H2O = 75.01 g
This means that the total mass of the reactants must also be 75.01 g.

Next, we need to determine the molar ratios of carbon, hydrogen, and oxygen in each of the compounds given.
A. C4H10O2: 4 moles of carbon, 10 moles of hydrogen, 2 moles of oxygen
B. C8HO12: 8 moles of carbon, 12 moles of hydrogen, 1 mole of oxygen
C. C2H5OH: 2 moles of carbon, 6 moles of hydrogen, 1 mole of oxygen
D. C4H8O2: 4 moles of carbon, 8 moles of hydrogen, 2 moles of oxygen

Using these ratios, we can calculate the theoretical mass of each compound that would be required to produce 75.01 g of products.
A. C4H10O2: (4 x 12.01 g) + (10 x 1.01 g) + (2 x 16.00 g) = 122.14 g
B. C8HO12: (8 x 12.01 g) + (12 x 1.01 g) + (1 x 16.00 g) = 188.18 g
C. C2H5OH: (2 x 12.01 g) + (6 x 1.01 g) + (1 x 16.00 g) = 46.07 g
D. C4H8O2: (4 x 12.01 g) + (8 x 1.01 g) + (2 x 16.00 g) = 144.11 g

Now we can compare the theoretical mass of each compound to the given mass of 25.74 g.
A. C4H10O2: theoretical mass = 122.14 g, too large
B. C8HO12: theoretical mass = 188.18 g, too large
C. C2H5OH: theoretical mass = 46.07 g, matches given mass
D. C4H8O2: theoretical mass = 144.11 g, too large

Therefore, the compound must be C2H5OH (ethanol).

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The most common empirical formula for a compound with these molar masses is C₃H8O₂. Therefore, the answer is A. C₃H8O₂

To solve this problem, we can use the balance equation for the combustion reaction:

30.04 g C + 51.12 g CO₂ + 28.45 g H₂O

Since we know the masses of CO₂ and H₂O produced, we can use the mole ratios of the compound to the product to find the molar mass of the compound.

The mole ratio of C to CO₂ is 30.04 g/51.12 g = 0.5839 mol/mol CO₂

The mole ratio of H to H₂O is 28.45 g/18 g = 1.60 mol/mol H₂O

The molar mass of the compound can be found by multiplying the moles of each element by their atomic mass:

0.5839 mol CO₂ * 44.01 g/mol = 24.637 g CO₂

1.60 mol H₂O * 18.02 g/mol = 28.454 g H₂O

Since we only have one unknown element, we can use the molar mass of carbon to find the empirical formula of the compound.

We can write the empirical formula as a ratio of carbon to the sum of the other elements:

C : C + H + O = 0.5839/1.60 = 0.3526 mol/mol

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Full Question: Combustion of 30.04 g of a compound containing only carbon, hydrogen, and oxygen produces 51.12 g CO2, and 28.45 g H2O

What is the empirical formula of the compound?

A. C3H8O2

B. C3H8O3

C. C4HO4

D. C6H16O4

Answer:

1. Hidracidas a. MX

2 Acidas c. MHXO

3. Oxacidas  b. MXO

4. Basicas d. M(OH)X

Explanation:

¡Hola!

En este caso, de acuerdo con el concepto de sal, la cual está generalmente dada por la presencia de al menos un metal y un no metal, es posible encontrar cuatro tipos de estas; hidrácidas, oxácidas, básicas y ácidas, en las que las primeras dos son neutras pero la segunda tiene presencia de oxígeno, la tercera tiene iones hidróxido adicionales y la cuarta iones hidrógeno de más.

Debido a la anterior, es posible relacionar cada pareja de la siguiente manera:

1. Hidracidas a. MX

2 Acidas c. MHXO

3. Oxacidas  b. MXO

4. Basicas d. M(OH)XO

En las que M se refiere a un metal, X a un no metal, H a hidrógeno y O a oxígeno.

¡Saludos!

Answer:

B-Sorry if this isn't right :/ Good luck.

Explanation:

Answer:

D. Scoot

Explanation:

Grew, Rude and truth all have the sound /OO/ scoot follows that pattern.

Chefs measure the number of ingredients they need before preparing foods for accuracy, consistency, and balancing flavors.

Measurements ensure accuracy and consistency in recipes. Cooking is a precise process, and precise measurements of ingredients are crucial for achieving the desired taste, texture, and overall outcome of a dish. By measuring ingredients, chefs can replicate their recipes consistently, ensuring that each dish turns out as intended.

Certain ingredients, such as spices, seasonings, and acids, can greatly impact the taste of a dish. By carefully measuring these ingredients, chefs can maintain a precise balance of flavors.

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The valencies of transition elements depend on their electron configuration and follow trends within the periodic table.

The valencies of transition elements depend on various factors. Here are two main points to consider:

1. Electron configuration: The valencies of transition elements are determined by the number of valence electrons in their outermost energy level. Transition elements have incompletely filled d-orbitals, and the number of valence electrons can vary across the transition series. For example, in the first row of the transition series (3d series), the valencies range from +2 to +7 due to the different electron configurations.

2. Oxidation state trends: The valencies of transition elements also follow certain trends within the periodic table. For example, as you move across a period from left to right, the valencies of transition elements generally increase. This is because the effective nuclear charge experienced by the valence electrons increases, making it easier for the elements to lose or gain electrons to achieve a stable configuration.

In summary, the valencies of transition elements depend on their electron configuration and follow trends within the periodic table. This helps determine the range of oxidation states that these elements can exhibit.

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Answer: D

Explanation:

A control group is the variable that remains constant throughout the whole experiment

The statement which is true about a control group is that it is a test group where the variable is not changed or applied. Thus, the correct option for this question is D.

A control group may be defined as a group that is significantly separated from the rest of the experiment, where the independent variable is being tested. This group reflects the difference between dependent and independent variables.

According to the context of this question, during the course of the experiment, the control groups remains constant throughout the process. Researchers compare the results of a treatment group to the control group in order to determine the effect size, also known as the treatment effect.

Therefore, the correct option for this question is D.

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Answer: Filtration: Method and Examples. Filtration can be described as an act or process of filtering or cleaning something.

Decantation: Method and Examples.

Summary of the difference between Filtration and Decantation: Filtration uses multiple surfaces to filter a substance while decantation doesn’t use a medium, especially a multiple-layered one.

Explanation: I hope this helps you im sorry you had to wait long

In this reaction Kp₂ (150.2) is much smaller than Kp₁ (2.26 ×104). Therefore, reactants (CO and H₂) will be favored at equilibrium for the reaction 1/2 CO(g) + H₂ (g) ⇌ 1/2 CH₃OH(g).

The equation for the given reaction is CO(g) + 2 H₂(g) ⇌ CH₃OH(g) with an equilibrium constant of Kp = 2.26 × 104 at 298 K.

To calculate the Kp for the reaction 1/2 CO(g) + H₂ (g) ⇌ 1/2 CH₃OH(g), we first need to write the balanced equation as follows:

CO(g) + 2 H₂ (g) ⇌  CH₃OH(g),

Dividing the equation (1) by 2, we get:

1/2 CO(g) + H₂(g) ⇌ 1/2 CH₃OH(g)   ... (2)

Now, we can calculate the Kp for the reaction (2) by using the following equation:

Kp₂ = (PCH3OH/0.5) / (PCO/0.5 * PH2)

where P CH₃OH, PCO, and PH₂ are the partial pressures of CH₃OH, CO, and H₂ at equilibrium.

Since the stoichiometric coefficients for the reactants and products in equation (2) are the same, the partial pressures of CO, H₂, and CH₃OH at equilibrium will be equal to each other.

Therefore, we can simplify the above equation as:

Kp₂ = PCH₃OH₂ / PCO / PH₂

Kp₂ = (Kp₁)1/2 = (2.26 ×104)1/2 = 150.2

So, Kp for the reaction 1/2 CO(g) + H₂ (g) ⇌ 1/2 CH₃OH(g) is 150.2.

To predict whether reactants or products will be favored at equilibrium, we can compare the calculated Kp value for the reaction with the equilibrium constant value of Kp = 2.26 × 104 for the given reaction.

If Kp for the reaction is greater than Kp for the given reaction, then products will be favored at equilibrium. However, if Kp for the reaction is less than Kp for the given reaction, then reactants will be favored at equilibrium.

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Answer:

False

Explanation:

there should be sharing of electrons between two of the atoms to be a covalent bonding. but there is no linkage of electron between them

Answer:

i think it is D

Explanation:

i dont know what you are learning but ecological succession is the change of enviroment pretty much.

Answer:

66.5% (3 s.f.)

Explanation:

Please see the attached pictures for the full solution.

*Mr stands for relative formula mass

The molecule O=C=S is linear and has a Lewis structure analogous to that of CO2. This molecule is polar molecule.

What are polar molecules?

Polar molecules are molecules that have two oppositely charged ends. Polar molecules exist as a result of differences in the electronegativities of the atoms of the elements found in the molecule.

With two electron domains around the central atom .the electron domain & molecular geometries are linear .sinces oxygen is more electronegative than sulphur.

The bond dipole symmetrically distributed around the carbon atom , are not identical and therefore,the bond dipole do not sum to zero.

Therefore, OCS molecule is a polar molecule not a non polar.

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Answer:

um pretty sure this is it

Explanation:

The fission process also releases extra neutrons, which can then split additional atoms, resulting in a chain reaction that releases a lot of energy.

During nuclear fission, the change that takes place is the release of energy and the generation of large amounts of heat.

When nuclei fragment, the reaction is known as nuclear fission, that is, it is the energy that is released as a result of the reaction that occurs when heavy atomic nuclei are divided.

It occurs when a heavy atomic nucleus is fragmented into several nuclei of lower weight, and can also produce free neutrons, photons and fragments of the nucleus as a result of this process large amounts of heat are generated.

Therefore, we can conclude that during nuclear fission, the change that takes place is the release of energy and the generation of large amounts of heat, which allows obtaining mechanical energy to start electrical power generators.

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Answer:

Identify arrows pointing to bonding electrons.

✔ a, b, d

Identify arrows pointing to nonbonding electrons.

✔ c

Identify arrows pointing to structures containing sigma bonds.

✔ a, b, d

Identify arrows pointing to structures containing pi bonds.

✔ a

Explanation:

Answer:

1) option c 2) c 3) option b 4) a

Explanation:

Answer:

its B

Explanation:

right on acellus

The wavelength of the radiation whose frequency is 5 X 10^15s^-1 is 2.4 X 10^-6 inches, or 60 nanometers.

The location of resources a concern, because some areas have more access to resources than others, Human populations are sometimes concentrated in areas that are lacking resources, and areas with fewer resources may need to buy resources from other areas. Therefore, option D is correct.

Natural resources are substances obtained from the planet that are utilised to sustain life and provide for human needs. A natural resource is something that comes from nature that humans use.

Natural resources include things like stone, sand, metals, oil, coal, and natural gas. Air, sunshine, soil, and water are examples of other natural resources.

Resources are more easily accessible in some places than others. There are periods when human populations are concentrated in places with few resources. Localities with limited resources could be forced to import resources.

Thus, option D is correct.

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According to Chemicool, the natural semiprecious gemstone zircon is produced when zirconium and silicate mix. Cubic zirconia, which is frequently utilized as an alternative to diamonds, is produced when zirconium and dioxide are mixed.

What substance makes up zirconium ore?

Hafnium is typically present in zirconium ores, and it is challenging to separate. Zirconium of commercial grade comprises 1% to 3% hafnium. Zirconium is employed in nuclear energy applications, such as cladding fuel elements, since it has a low neutron absorption cross section.

Zirconium has been widely used in the creation of pumps, valves, and heat exchangers due to its great corrosion resistance. Zirconium is also utilized in the manufacturing of some magnesium alloys as an alloying agent and as an additive in the production of some steels.

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Answer:

Temperature

Explanation:

This is because quantitative data include numerical values for example 10 degrees Celsius. However the others are qualitative data because the research can be described but not with numbers like your appearance is very nice.

Hope this helps :P

Answer:

Quantitative data is the type of data whose value is measured in the form of numbers or counts, with a unique numerical value associated with each data set. Also known as numerical data, quantitative data further describes numeric variables (e.g. How many? How often? How much?)

Explanation:

so its temp