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3 years ago

How do enzymes speed un chemical reactions?

1 answer:

8 0

Enzymes are extremely selective catalysts that help to speed up reactions. The molecules an enzyme works with are called substrates and they bind to the enzyme. This helps speed up reactions greatly once the substrates bind to the active site of the enzyme.

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How many molecules of ammonia are formed in the following equation: N2+3H2→2NH3

Katena32 [7]

Answer:

two molecules of ammonia are formed by the reaction of one nitrogen and three hydrogen molecules.

Explanation:

The balanced chemical equation provides information on:

Reactants: those are the compounds that appear of the left side of the equation, each with its chemical formula.

Products: those are the compounds that appear on the right side of the equation, again, each with its chemical formula.

Ratio: the coefficients of each compound (the number to the left of the chemical formula) represent the ratio of the number of molecules that react and are formed.

In the given equation you have:

Equation: N₂ + 3H₂ → 2NH₃

The coefficients are 1 for nitrogen, 3 for hydrogen, and 2 for ammonia. Hence, 2 molecules of ammonia are formed by the reaction of 1 molecule of nitrogen and 3 molecules of hydrogen.

7 0

3 years ago

If a mixture containing 0.50 moles of N2 and 1.8 moles of H2 is allowed to react according to the equation N2 3H2 2NH3 Group of

Lelechka [254]

Answer: hydrogen is the limiting reactant.

Explanation:

We have the equation $\text{N}_{2}+3\text{H}_{2} \longrightarrow 2\text{NH}_{3}$ .

This means that for every mole of nitrogen consumed, 3 moles of hydrogen are consumed.

Considering the nitrogen, the reaction can occur 0.50 times.
Considering the hydrogen, the reaction can occur 1.8/3 = 0.6 times.

Therefore, hydrogen is the limiting reactant.

7 0

2 years ago

g Determine the empirical formula for a compound that contains C, H and O. It contains 40.92% C, 4.58% H, and 54.50% O by mass.

Lady bird [3.3K]

Answer:

The empirical formula for the compound is C3H4O3

Explanation:

The following data were obtained from the question:

Carbon (C) = 40.92%

Hydrogen (H) = 4.58%

Oxygen (O) = 54.50%

The empirical formula for the compound can be obtained as follow:

C = 40.92%

H = 4.58%

O = 54.50%

Divide by their molar mass

C = 40.92/12 = 3.41

H = 4.58/1 = 4.58

O = 54.50/16 = 3.41

Divide by the smallest i.e 3.41

C = 3.41/3.41 = 1

H = 4.58/3.41 = 1.3

O = 3.41/3.41 = 1

Multiply through by 3 to express in whole number

C = 1 x 3 = 3

H = 1.3 x 3 = 4

O = 1 x 3 = 3

The empirical formula for the compound is C3H4O3

6 0

3 years ago

Which shows the levels of organization within an ecosystem from largest to smallest?

Aliun [14]

Biosphere, biome, ecosystem, community, population and then individual. Should of used Google found the answer right away.

3 0

3 years ago

Read 2 more answers

PLEASE HELP! IM TRYNA GET A GOOD GRADE! I ONLY HAVE 6 MINS LEFFTT

Arte-miy333 [17]

Answer:

<h2>answer - b molarity </h2>

Explanation:

<h2>please like me</h2><h2>I hope answer correct</h2>

6 0

3 years ago