Alcohol dehydrogenase catalyzes the conversion of methanol to _________ and is,
therefore, classified as a(an)________.
A) acetic acid; transferase
B) formaldehyde; oxidoreductase
C) acetic acid; oxidoreductase
D) ethanol; lyase
E) formaldehyde; transferase

Answer:

a. Serine is converted to pyruvate. It is glucogenic.

b. Aspartate is converted citric acid cycle intermediates. It is glucogenic.

c. Leucine is converted to AcetylCoA. It is ketogenic.

Explanation:

The degradation of amino acids usually account for a significant amount of energy production by the human body. The carbon skeletons of amino acids after deamination are either channelled to gluconeogenesis, ketogenesis or are completely oxidized to carbon dioxide and water.

The amino acids that are channelled to gluconeogenesis are said to be glucogenic. The glucogenic amino acids are those that are either degraded to ∝-ketoglutarate, succinylCoA, fumarate or oxaloacetate which are citric acid cycle intermediates that can be converted to glucose and glycogen. Also, amino acids that are degraded to pyruvate are glucogenic as pyruvate can be converted to glucose via oxaloacetate. Examples of these amino acids are serine which is converted to pyruvate and aspartate which is converted to the citric acid cycle intermediate, oxaloacetate.

On the other hand, amino acids that are channelled to ketogenesis are said to be ketogenic. The ketogenic amino acids are degraded to either acetylCoA or acetoacetylCoA. AcetylCoA and acetoacetylCoA are used in the formation of key one bodies. An example of a ketogenic amino acid is leucine which is converted both to AcetylCoA and acetoacetylCoA.

Answer:

Here are a few more examples:

Smoke and fog (Smog)

Dirt and water (Mud)

Sand, water and gravel (Cement)

Water and salt (Sea water)

Potassium nitrate, sulfur, and carbon (Gunpowder)

Oxygen and water (Sea foam)

Petroleum, hydrocarbons, and fuel additives (Gasoline)

Heterogeneous mixtures possess different properties and compositions in various parts i.e. the properties are not uniform throughout the mixture.

Examples of Heterogeneous mixtures – air, oil, and water, etc.

Examples of Homogeneous mixtures – alloys, salt, and water, alcohol in water, etc.

Explanation:

Answer:

smog,mud, cement?

Explanation:

Smoke and fog (Smog)

Dirt and water (Mud)

Sand, water and gravel (Cement)

Answer:

first bring craft paper then make 12345678 910 then make lines how many box you want to make then then draw write down their your answer bye-bye

From the given data, the name of the hydrated salt would be  \(CoCl_2.83H_2O\).

The formula of the hydrated salt can be determined using the empirical formula approach. That is, we will find the mole equivalent of the anhydrous salt and the water of hydration and then combine them into a single formula after dividing by the smallest mole.

First, we need to determine the mass of the anhydrous salt and the water of hydration.

Mass of crucible (x) = 12.090 g

Mass of hydrated salt + crucible (y) = 16.250 g

Thus, the mass of the hydrated salt can be determined by subtracting x from y.

Mass of hydrated salt = 16.250 - 12.090 = 4.16 g

Mass of hydrate + crucible after evaporating off the water (z) = 12.424 g

Mass of anhydrous salt = z - x

                                      = 12.424 - 12.090

                                      = 0.334 g

Mass of water = 4.16 - 0.334

                        = 3.826 g

Now, let's find the moles:

Molar mass of \(CoCl_2\) = 129.839 g/mol

Molar mass of water = 18.01 g/mol

Mole of \(CoCl_2\) = 0.334/129.839 = 0.00257 mol

Mole of water = 3.826/18.01 = 0.2124 mol

Dividing through by the smallest mole

\(CoCl_2\) =  0.00257 / 0.00257  = 1

water = 0.2124/ 0.00257 = 83

Thus, the formula of the hydrate would be \(CoCl_2.83H_2O\)

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Answer:

The answer you are looking for is A

Answer:

The rearrangement of particles in a physical change.

Explanation:

When things are liquid the particles tend to be spread out because they aren't tightly compacted as they would be with a solid. So when liquid gold is changing from a liquid to a solid the properties are changing and the particles in the gold are getting closer together.

Answer:

D is correct answer

Explanation:

Answer:

As you move across a period the electrons are being added to the same shell. But, protons are being added as well. This makes the nucleus more positively charged and, increasing protons has a greater effect than electrons. So, there is a greater nuclear attraction and, because the electrons are being added to the same shell that shell gets pulled in more. This causes a decrease in atomic radius.

Explanation:

The primary reason that atomic radius decreases as you move from left to right across the periodic table is; Due to the increase in electrostatic attraction between the positively charged nucleus and the negatively charged electrons.

The number of shells in elements located in the same period are equal.

However, with successive increase in the atomic number, the number of electrons and protons increases.

Consequently, the electrostatic attraction between the positively charged nucleus and negatively charged electrons increases and the radius reduces accordingly.

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Answer:

propane

Explanation:

Answer:

28.5 g NH₃

Explanation:

You can determine how much ammonia will form by identifying which reactant is the limiting reagent. This can be done by converting each reactant into moles, using the mole-to-mole ratio (after balancing the reaction), then converting ammonia to grams.

2 NO + 3 H₂ --> 2 NH₃ + O₂

Molar Mass (NO) = 14.01 + 16.00 = 30.01 g/mol

Molar Mass (H₂) = 2(1.008) = 2.016 g/mol

Molar Mass (NH₃) = 14.01 + 3 (1.008) = 17.034 g/mol

50.2 g NO          1 mol             2 mol NH₃            17.034 g
----------------  x  ---------------  x  --------------------  x  ----------------  =  28.5 g NH₃
                          30.01 g           2 mol NO              1 mol

15.1 g H₂             1 mol             2 mol NH₃            17.034 g
----------------  x  ---------------  x  --------------------  x  ----------------  =  85.1 g NH₃
                          2.016 g           3 mol H₂                 1 mol

Nitrogen oxide (NO) is the limiting reagent because it produces the smallest amount of product. In other words, it runs out before all of the hydrogen gas (H₂) can be used. This means that the largest amount of ammonia that can be produced is 28.5 grams.

The balanced equation is:

2\(Fe^{3+}\)+ 4\(H^{+}\) + 2\(No_{2} ^{-}\) → 2\(Fe^{2+}\) + 2H2O + 2\(No_{3} ^{-}\)

What is balanced equation?

To balance this redox reaction, we first need to identify which elements are being oxidized and reduced. In this case, the iron (Fe) is being reduced from a +3 oxidation state to a +2 oxidation state, while the nitrogen (N) in the nitrite ion (NO2-) is being oxidized from a +3 oxidation state to a +5 oxidation state in the nitrate ion (NO3-).

To balance the equation, we can follow these steps:

Write out the unbalanced equation:

\(Fe^{3+}\) + \(No_{2} ^{-}\) + H₂O → \(Fe^{2+}\) +\(H^{+}\) + \(No_{3} ^{-}\)

Separate the equation into two half-reactions, one for the oxidation and one for the reduction:

Oxidation: \(No_{2} ^{-}\) → \(No_{3} ^{-}\)

Reduction: \(Fe^{3+}\) → \(Fe^{2+}\)

Balance the elements in each half-reaction by adding the appropriate number of electrons (e-):

Oxidation: 4\(H^{+}\) + \(No_{2} ^{-}\) + e- → \(No_{3} ^{-}\) + 2H2O

Reduction: Fe³+ \(e^{-}\) → \(Fe^{2+}\)

Balance the number of electrons transferred in the two half-reactions by multiplying one or both of the half-reactions by a suitable coefficient:

Oxidation: 4\(H^{+}\) + \(No_{2} ^{-}\) + 2\(e^{-}\) → \(No_{3} ^{-}\) + 2H2O

Reduction: 2\(Fe^{3+}\) + 2\(e^{-}\) → 2\(Fe^{2+}\)

Add the two half-reactions together and cancel out any common species on both sides of the equation:

2\(Fe^{3+}\)+ 4\(H^{+}\) + 2\(No_{2} ^{-}\) → 2\(Fe^{2+}\) + 2H2O + 2\(No_{3} ^{-}\)

The balanced equation is:

2\(Fe^{3+}\)+ 4\(H^{+}\) + 2\(No_{2} ^{-}\) → 2\(Fe^{2+}\) + 2H2O + 2\(No_{3} ^{-}\)

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Answer:

CaCl3 is the limited reagent

Explanation:

Answer:The changes around us that involves chemistry is burning,cooking,rusting,and rotting.

Explanation:

Answer:

B

Explanation:

Because the atomic mass is the mass of a single atom of a chemical elements

The work done on the system for the reaction \(C2H5OH(1) + 3O2(g) → 2CO2(g) + 3H2O(0)\) at 25°C is 1240 kJ.

The work done on a system can be calculated using the Gibbs free energy equation: \(\beta ΔG = ΔH - TΔS,\) where ΔH is the enthalpy change, T is the temperature, and ΔS is the entropy change. The given enthalpy change is -1367 kJ, which represents the amount of heat released during the reaction.

To calculate the work done on the system at 25°C, we need to calculate the entropy change.

\(ΔS°\)(C₂H₅OH) = 160.7 J/K·mol

ΔS°(O₂) = 205.0 J/K·mol

ΔS°(CO₂) = 213.8 J/K·mol

ΔS°(H₂O) = 188.8 J/K·mol

Using the formula \(ΔS° = ΣnS°(products) - ΣmS°(reactants)\), we can calculate the entropy change for the reaction. This gives:

\(ΔS° = [2(213.8 J/K·mol) + 3(188.8 J/K·mol)] - [1(160.7 J/K·mol) + 1(205.0 J/K·mol) + 3(188.8 J/K·mol)]\)

\(ΔS° = -470.9 J/K·mol\)

Now we can calculate the work done on the system using the Gibbs free energy equation:

\(ΔG = ΔH - TΔS\)

\(ΔG = -1367 kJ - (25°C + 273.15)K × (-0.4709 kJ/K·mol)\)

\(ΔG = -1240 kJ/mol\)

The negative sign indicates that the work is done on the system, and its magnitude is 1240 kJ. Therefore, the work done on the system for the reaction \(C2H5OH(1) + 3O2(g) → 2CO2(g) + 3H2O(0)\) at 25°C is 1240 kJ.

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Answer:

83.7% oxygen, 16.3% hydrogen

Explanation:

Mass of compound = 16.75 g

Mass of Oxygen = 14.02 g

Mass of Hydrogen =  2.73 g

Percentage composition = Mass of element /  Mass of compound    100%

Percentage composition of Oxygen = 14.02 g / 16.75 g    * 100%

Percentage composition of Oxygen = 0.837 * 100 = 83.7%

Percentage composition of Hydrogen = 2.73 g / 16.75 g    * 100%

Percentage composition of Hydrogen = 0.163 * 100 = 16.3%

The correct option is;

83.7% oxygen, 16.3% hydrogen

Answer:

83.7% oxygen, 16.3% hydrogen

Explanation:

To determine the percent composition we can divide, our mass by total mass and afterwards, multiply by 100.

(Mass of O / Total mass) . 100 = % O

(Mass of H / Total mass) . 100 = % H

Remember that:

% O + % H = 100

Mass of O / Total mass + Mass of H / Total mass = 1

(14.02 g / 16.75g) . 100 = 83.7 %

(2.73 g /16.75g) . 100 = 16.3 %

Answer:

a specific amount edta is added to a specific amount of distilled water

Explanation:

Answer:

I guess it all of these

as life cycle of an organism can be predicted and yeah it begins with birth hatching or germination for mammals, animals and plants respectively. then it's same for the organism of the same species .

Question:-

Which of the following is true of an organism's life cycle?

Answer:-

The conversion of the given units are as follows:

98.6oF = 37°C = 310 K = 98.33°F

25.0°C = 298K = 76.73°F

131.85°C = 405 K

Temperature is a physical quantity that quantifies our feelings of hotness and coldness. A thermometer is used to measure temperature.

According to the International System of Units, the SI unit of temperature is Kelvin, which is represented by the symbol K. In the fields of science and engineering, the Kelvin scale is widely accepted or used.

However, in most parts of the world, temperature is measured using the Celsius or Fahrenheit scale.

Thus, The conversion of the given units are 98.6oF = 37°C = 310 K = 98.33°F.

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Chymotrypsin is an enzyme and, as such, it possesses the following characteristics:

A. Is a catalyst: Enzymes are biological catalysts that speed up chemical reactions without being consumed or altered in the process.

C. Speeds up a chemical reaction: Enzymes work by lowering the activation energy required for a reaction to occur. This means that the reaction can occur more quickly and efficiently in the presence of an enzyme.

D. Is found in cells of some living organisms: Enzymes are found in the cells of living organisms, where they play a crucial role in many biological processes, such as digestion, metabolism, and DNA replication.

These characteristics are common to all enzymes, including chymotrypsin, which is a type of protease enzyme that is involved in breaking down proteins in the digestive system.

B. Inhibits the binding of a substrate to an active site: This statement is incorrect. Enzymes actually increase the rate of reaction by facilitating the binding of the substrate to the active site, where the reaction takes place. Inhibitors, on the other hand, can interfere with this binding and slow down the reaction.

Answer:

i am

Explanation:

im lonly

Wiring that is covered with orange conduit may contain wiring with voltage levels between 42 and 100 volts is true

Orange conduit is a type of protective covering that is used to enclose electrical wiring. It is often used to indicate that the wiring inside contains low-voltage circuits, which are those with voltage levels between 42 and 100 volts. Low-voltage wiring is used in a variety of applications, including lighting, security systems, and communications systems. It is typically safe to work with, but it is important to follow proper safety procedures and use appropriate tools and protective gear when handling it. Orange conduit is just one of several colors of conduit that are used to indicate the voltage level of the wiring inside. Other colors that may be used include yellow (for medium voltage), red (for high voltage), and black (for extra high voltage).

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Answer: A mole is a unit of measurement.

Explanation:

moles= mass/molar mass

for example moles=1000g/342.296 g/mol

moles=2.921 mol

The mass of the rectangular piece of copper is 18,869 g (approx).In conclusion, the mass of a rectangular piece of copper with dimensions 24.4cm x 11.4 cm x 7.9 cm and a density of 8.92 g/cm³ is 18,869 g (approx.).

The given dimensions of the rectangular piece of copper are:Length = 24.4 cmWidth = 11.4 cmHeight = 7.9 cmThe formula to calculate the mass of an object is given by;

Mass = Density x Volume

Here, the density of copper is given as 8.92 g/cm³.

Therefore, the first step is to calculate the volume of the rectangular piece of copper.The formula to calculate the volume of a rectangular object is given by:

Volume = Length x Width x Height

So,Volume = 24.4 cm x 11.4 cm x 7.9 cm= 2115.432 cm³Now we will use the mass formula:

Mass = Density x Volume= 8.92 g/cm³ x 2115.432 cm³= 18,869.27824 g= 18,869 g (approx.)

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Answer:

among these which is not a base is CaSO4

The graphs which use axes both labeled with quantitative values and show individual points of data include:

Thus is defined as a pictorial representation of data or variables in an organized or definite manner.

The graphs mentioned above always have each point matching with one value on the x-axis and one value on the y-axis.

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Answer:

its b

Explanation:

12 electrons are transferred in this oxidation–reduction reaction.

What is oxidation-reduction reaction?

Reduction-oxidation is referred to as redox, and a redox reaction is one in which both a reduction reaction and an oxidation reaction occur at the same time. Additionally, it is an acronym for an oxidation-reduction reaction. Let's first talk about each of these two elements independently before returning to how they interact to form a complete redox reaction.

The balanced reaction is

4 Fe (s) + 3 O2 —> 2 Fe2O3 (s)

Oxidation state of Fe changes from 0 to +3 and there are 4 such Fe.

So, it loses 4*3 = 12 electrons

Oxidation state of Oxygen changes from 0 to -2 and there are 6 such Oxygen.

So, it gains 6*2 = 12 electrons

Hence, we can say that 12 electrons are transferred.

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Complete question:

Rust (Fe2O3) forms on abandoned cars such as the one in this photo through a series of reactions between iron in the car and oxygen in the atmosphere.

The unbalanced chemical equation for this reaction is

Fe(s) + O2(g) –> Fe2O3(s)

How many electrons are transferred in this oxidation–reduction reaction?________ electrons