How can you distinguish colloids from other mictures?​

The right response is d. Both enzymes will have the same ΔG for catalysis.

The reaction rate and equilibrium constant have an impact on the Gibbs free energy (ΔG). No matter the source of the enzyme, such as E. coli or a thermophilic microbe, the ΔG for a reaction is the same. As a result, both enzymes will have the same ΔG for sucrose hydrolysis.

The ΔG may be written mathematically as:

ΔG = -RT ln (K)

T is the temperature, K is the equilibrium constant, and R is the gas constant..

As both enzymes have the same reaction rate (K) and temperature (T), the reaction's ΔG  value will likewise be the same.

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Answer:

isotope phosphorus-31

Explanation:

The pH value of the resulting solution is 11.9.

To calculate the pH value of the solution we need to calculate the molarity (c) of the solution, using the number of moles of HCl (n) and the volume of the solution (V = 662 mL = 0.662 L).

c = n/V

To obtain the number of moles of HCl, we are going to use the mass of HCl (m = 18.4 g) and its molar mass (M = 36.5 g/mol):

n = m/M

n = 18.4 g / 36.5 g/mol

n = 0.504 mol

Now we can calculate the molarity:

c = 0.504 mol / 0.662 L

c = 0.761 M

Because HCl is a monoprotic acid, the molarity of the solution is equal to the concentration of H⁺ ions ([H⁺] = 0.761 M), which is important for calculating pH:

pH = -log[H⁺]

pH = -log(0.761)

pH = 11.9

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Answer:

I'm pretty sure its 2.73 g

Explanation:

If you use the molecular orbital theory, option C, which is the paramagnetism of oxygen particles, you can explain the odd thing that Lewis structures can't explain.

The fact that oxygen particles are paramagnetic doesn't make sense in terms of Lewis structure. Since oxygen atoms have two electrons that don't have a partner, only molecular orbital theory can explain why oxygen particles are paramagnets. A Lewis structure is a much better way to show how the electrons in a particle's valence shell are arranged. It is used to show how the electrons around the different atoms in a particle are arranged. Electrons are shown as "dabs" or as a line running between two particles. In his cubical particle hypothesis, Lewis came up with the "octet rule." The octet rule is based on the fact that iotas tend to like having eight electrons in their valence shell. When molecules have fewer than eight electrons, they usually react by making more stable mixtures. Atoms will act to get into the most stable state possible.

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Answer:

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In quantum mechanics, the angular momentum quantum number "l" defines the shape of the atomic orbital. The l value is an integer ranging from 0 to (n-1) where n is the principal quantum number.

Therefore, for an electron in the L(n=2) shell of an atom, the possible values of the angular momentum quantum number l would range from 0 to 1, since n=2.

This is because the L shell is the second shell, which has n=2. Therefore, it can have subshells with l=0 and l=1, also known as the s and p subshells respectively.

The angular momentum quantum number also has an effect on the energy of the electron, with higher l values having higher energy.

Thus, the possible values of the angular momentum quantum number l for an electron in the L(n=2) shell of an atom are l=0 and l=1.

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The value of a car that was purchased in 2010 for $20,000 which is depreciating in value by 15% each year is $3937.49.

The value of the car will be found using the exponential decay model.

The formula of the exponential decay model is given as follows:

y = a (1 - r)ˣ

where;

y = the amount remaining

a = initial amount

r = decay rate

x = time period of decay

In the question above, a car was bought for $20000 in 2010.

The value of the car decays exponentially at a rate of 15% each year.

The time period between 2010 and 2020 is 10 years.

Considering the data given about the car:

a = $20000

r = 15% or 0.15

x = 10

Substituting the values in the decay formula:

y = 20000 (1 - 0.15)¹⁰

y = 20000 (0.85)¹⁰

y = $3937.49

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The difference in degrees Fahrenheit between the maximum expected temperatures by the end of the century between the lower and higher emissions scenarios can vary depending on various factors and assumptions.

However, in general, the lower emissions scenario is expected to result in a lower increase in global temperatures compared to the higher emissions scenario.

This means that the maximum expected temperature rise by the end of the century under the lower emissions scenario would be lower than that of the higher emissions scenario.

The specific temperature difference would depend on the specific projections and models used, but it highlights the significant impact that emissions reductions can have on mitigating future temperature increases.

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An insect needs mud wallows to breed; that insect pollinates several flowers in that ecosystem.

Having mud in an ecosystem is important because Insects are very important as primary or secondary decomposers in the ecosystem. These insects need mud wallows to breed. That insect pollinates several flowers in that ecosystem.

Therefore, the mud in an ecosystem is most important as it provides a place for insects to breed and these insects play a major role in the ecosystem like pollination.

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Explanation

NH4Cl(s) = NH4+(aq) + Cl-(aq) AH = +3.5 kcal/mole

We have some changes that shift the equilibrium to the right, according to Le Châtelier's principle.

I will write some of them:

By Adding amount of NH4Cl or by increasing the temperature because according to the heat of the reaction this is an endothermic reaction.

Answer: Increasing the temperature of the system.

Answer:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process. So, the answer is A.

Explanation:

I hope this helps. :D

Cellular respiration is different from photosynthesis as photosynthesis produces ATP, and cellular respiration produces sugars. Hence, option A is correct.

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

Photosynthesis converts carbon dioxide and water into oxygen and glucose.

Glucose is used as food by the plant and oxygen is a by-product.

Cellular respiration converts oxygen and glucose into water and carbon dioxide.

Water and carbon dioxide are by-products and ATP is energy that is transformed from the process.

Hence, option A is correct.

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Because they only partially ionize in solution, carboxylic acids are weak acids. When compared to a solution of a strong acid at the same concentration, their solutions contain fewer hydrogen ions. At the same concentration, the pH of a weak acid will be higher than that of a strong acid. This statement is true.

A carboxylic acid is an organic acid with a carboxyl group attached to an R-group in organic chemistry. A carboxylic acid has the general formula RCOOH or RCO2H, where R refers to the alkyl, alkenyl, aryl, or other group. Carboxylic acids are found in abundance.

Carboxylic acids do this much more readily than most other classes of organic compounds, so they are referred to as stronger acids, despite being far weaker than the most important mineral acids—sulfuric (H2SO4), nitric (HNO3), and hydrochloric (HCL) (HCl).

Because of the following factors, carboxylic acid is weaker than HCl: Carboxylic acid ions do not completely dissociate in water. Carboxylic acid, as an organic acid, does not behave like other acids because it is not ionic.

Thus, carboxylic acids are weak acids.

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Answer: so the answer is A

Explanation: The relationship between an object's mass (m), its acceleration (a), and the applied force (f) is F=ma. ... This law requires that the direction of the acceleration vector is in the same direction as the force vectors.

An element is the sum of protons and neutrons in an atom

An element is a fundamental thing that is difficult to divide into smaller parts. A substance that cannot be broken down by non-nuclear reactions is referred to as an element in chemistry and physics. An element is a unique component of a bigger system or set in computing and mathematics.

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The number 0.005802 expressed in proper scientific notation is 5.802 x 10^-3

To solve this questions we need to know the heterocyclic compounds and little bit about resonance. Therefore the nitrogen which is labelled 2 will react first with acid.

Heterocyclic compounds are those cyclic organic compounds that contains hetero atoms in place of carbon like N,S and O.

Pyrazole contains has structure just like pyrrole the Nitrogen which is labelled 1 that is NH act like nitrogen of pyrrole and the nitrogen that is labelled as 2 act like nitrogen of pyridine.

The electron of NH is involved in resonance, it is not free to give its electron to hydrogen ion from acid. So the nitrogen which is like nitrogen of pyridine will take hydrogen ion from acid first.

Therefore the nitrogen which is labelled 2 will react first with acid.

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Answer:

2

Explanation:

According to the concept of valency, 2 moles of oxygen are needed to react with 100.0 grams of aluminum.

Mole is defined as the unit of amount of substance . It is the quantity measure of amount of substance of how many elementary particles are present in a given substance.

It is defined as exactly 6.022×10²³ elementary entities. The elementary entity can be a molecule, atom ion depending on the type of substance. Amount of elementary entities in a mole is called as Avogadro's number.

It is widely used in chemistry as a suitable way for expressing amounts of reactants and products.For the practical purposes, mass of one mole of compound in grams is approximately equal to mass of one molecule of compound measured in Daltons. Molar mass has units of gram per mole . In case of molecules, where molar mass  in grams present in one mole  of atoms is its atomic mass.

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Answer:

This increases our molar volume relative to an ideal gas, which results in a value of Z that is greater than 1.

Explanation:

textbook

Answer:

B. Molar volume decreases

Explanation:

To solve this problem, we can use the ideal gas law, which states:

PV = nRT

Where:

P = pressure

V = volume

n = number of moles

R = ideal gas constant

T = temperature in Kelvin

Since we are only interested in the change in volume, we can assume that the pressure, number of moles, and the gas constant remain constant. Therefore, we can write:

V₁ / T₁ = V₂ / T₂

where V₁ and T₁ are the initial volume and temperature, and V₂ and T₂ are the final volume and temperature.

Given:

V₁ = 150 mL

T₁ = 15 °C = 15 + 273.15 = 288.15 K

T₂ = 85 °C = 85 + 273.15 = 358.15 K

Now we can calculate V₂:

V₂ = (V₁ * T₂) / T₁

= (150 * 358.15) / 288.15

≈ 186.55 mL

Therefore, the nitrogen sample will occupy approximately 186.55 mL at 85 °C.

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Heat capacity of the calorimeter is 15.68 kJ/°C when a 21.8 g sample of ethanol is burned in a bomb calorimeter and the temperature rises from 25.0 °C to 62.3 °C, with a ΔrU of -1235 kJ/mol.

What is the heat capacity of a bomb calorimeter when a given mass of ethanol is burned?

To calculate the calorimeter's heat capacity, use the following formula:

q = CΔT

Where q is the amount of heat absorbed by the calorimeter, C is its heat capacity, and T is the temperature change.

First, let's calculate the amount of heat released by the combustion of ethanol. We can use the given value of ΔrU and the number of moles of ethanol burned to calculate the heat released:

n = m/M

n = 21.8 g / 46.07 g/mol = 0.473 mol

qrxn = ΔrU * n

qrxn = -1235 kJ/mol * 0.473 mol = -585.16 kJ

Since the heat released by the reaction is absorbed by the calorimeter, we have:

qcal = -qrxn

qcal = 585.16 kJ

Finally, we can utilise the values of qcal and T to compute the calorimeter's heat capacity:

C = qcal / ΔT

C = 585.16 kJ / (62.3 °C - 25.0 °C)

C = 585.16 kJ / 37.3 °C

C = 15.68 kJ/°C

Therefore, the heat capacity of the calorimeter is 15.68 kJ/°C.

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Answer:

The cation is written first in the name; the anion is written second in the name. Rule 2. When the formula unit contains two or more of the same polyatomic ion, that ion is written in parentheses with the subscript written outside the parentheses.

When writing the formula of a compound that contains polyatomic ion, the metal is written first followed by the central atom in the ion and then other atoms that surround the central atom.

A poly atomic ion refers to an ion that comprises of more than one atom. Such ions are common in chemistry. Examples of polyatomic ions include; PO4^3-, BH4^- etc.

When writing the formula of a compound that contains a polyatomic ion, the metal is written first then the central atom in the ion follows before other atoms that surround the central atom in the ion.

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9. In terms of Material Sustainability Attribute HPD gives information about a product's content, any potential health hazards associated with the product, and the safe handling and disposal of the product.

10. In terms of sustainability, VOC gives information about chemicals emitted by building materials and finishes that can cause negative health effects for people and contribute to air pollution.

11. Single attribute product sustainability attributes are assessed for particular issues such as emission of VOCs, thermal performance, and energy performance. Thus, option E. (a, b, c) is correct.

12. International Green Construction Code is developed by ICC (International Code Council) in response: all of the above is the correct answer (Option E).

13. The statement "lumber applies to wood products derived directly from logs through sawing and planning operations with no other manufacturing except cutting to length" is true.

14. The statement "the terms lumber, solid lumber, solid sawn lumber, and sawn lumber are synonymous" is true.

15. Wood is known for its high strength-per-weight ratio as compared to other structural materials. (Option B).

16. The statement "Wood is much stronger by weight than concrete" is false because wood is less strong by weight than concrete.

17. The statement "Concentric annual rings are visible in the vertical section of a tree and provide a good estimation of the age of the tree" is true.

HPD stands for Health Product Declaration. In terms of Material Sustainability Attribute HPD gives information about a product's content, any potential health hazards associated with the product, and the safe handling and disposal of the product. VOC stands for Volatile Organic Compounds. In terms of sustainability, VOC gives information about chemicals emitted by building materials and finishes that can cause negative health effects for people and contribute to air pollution.

International Green Construction Code is developed by ICC (International Code Council) in response to demand and initiatives such as LEED. It is a baseline code as opposed to a multi-tiered rating system. It applies primarily to non-residential buildings. It is newly developed and not yet widely adopted and has some conflicts with the LEED certification process.

Thus, the correct answer is

11. E

12. E

13. True

14. True

15. B

16. False

17. True

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Answer:

59.8g/mol

Explanation:

1 mole will have 6.022 x 10^23 molecules

=> (2.33 x 10^23)/(6.022 x 10^23) = 0.3869 mole

0.3869 mole has mass of 23.14 g

then 1 mole will have = 23.14/0.3869 = 59.8g

Answer:

86.06 amu is the average atomic mass of element Zz.

Explanation:

We may find the average atomic mass of Zz with a simple thought experiment.  Let's imagine that we were given 100.0 grams of Zz.  We know that 87.20% of that 100.0 grams is an isotope having 85.96 AMU (atomic mass units).  That means the other 12.80% must be the isotope with 86.78 AMU.

Since we picked 100.0 grams, it is easy to see that we would have:

87.2 grams of 85.96 AMU, and

12.8 grams of  86.78 AMU

-----------

100.0 grams total

The contribution of each isotope can be calculated by taking it's percent abundance times it's AMU andf then adding the total results:

AMU        %       Contribution to total AMU

85.96      87.2       74.96

86.78       12.8        11.11

--------      ---------      -----------

               100.0      86.06 amu

The sum of the two weighted averaged amu numbers is the average atomic mass of element Zz.  [Element Zz has a good futire as a sleep aid.]

Answer:

The balanced equation for the given reaction is:

2H₂O₂ → 2H₂O + O₂

The type of reaction is a decomposition reaction, where a single compound breaks down into two or more simpler substances. In this case, hydrogen peroxide (H₂O₂) decomposes into water (H₂O) and oxygen gas (O₂). This is a chemical reaction, as the original compound is transformed into new substances with different properties.

Explanation:

Answer:

D.Ag is most conductive, Sn is intermediate in conductivity, S is least conductive.

Sorry if this is late, hope this helps for anyone viewing!