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3 years ago

Which could be the catalyst in a chemical reaction? A. reactants B. product C. enzyme D. activated complex

Chemistry

2 answers:

Mariulka [41]3 years ago

6 0

C. Enzyme because they catalyze biochemical reactions

dangina [55]3 years ago

3 0

Answer: Option (C) is the correct answer.

Explanation:

An enzyme is similar to a catalyst as it helps in increasing the rate of a biochemical reaction.

Also, like catalysts an enzyme does not get consumed in a reaction. They also help in lowering the activation energy and helps the reactant molecules to cross the energy barrier easily so that rate of reaction speeds up.

Thus, we can conclude that an enzyme could be the catalyst in a chemical reaction.

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Round off each number to the indicated number significant figures (sf):

qaws [65]

Answer :

(a) The given number in 2 significant figures will be, $3.6\times 10^3$

(b) The given number in 4 significant figures will be, $3.583\times 10^1$

(c) The given number in 3 significant figures will be, $2.24\times 10^1$

Explanation :

Significant figures : The figures in a number which express the value -the magnitude of a quantity to a specific degree of accuracy is known as significant digits.

(a) The given number 00003554 converted into 2 significant figures.

In 00003554, there are 4 significant figures. Now we have to convert it into 2 significant figures.

The given number in 2 significant figures will be, $3.6\times 10^3$

(b) The given number 35.8348 converted into 4 significant figures.

In 35.8348, there are 6 significant figures. Now we have to convert it into 4 significant figures.

The given number in 4 significant figures will be, $3.583\times 10^1$

(c) The given number 22.4555 converted into 3 significant figures.

In 22.4555, there are 6 significant figures. Now we have to convert it into 3 significant figures.

The given number in 3 significant figures will be, $2.24\times 10^1$

7 0

3 years ago

Which statement best describes the building?

Kamila [148]

Answer:

the answer is A

Explanation:

because abiotic things are non-living things

7 0

3 years ago

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What is the chemical formula for acetic acid?

liberstina [14]

CH3COOH

Explanation:

hope I helped

if you get the answer right mark me as brainlyst

8 0

2 years ago

16. Explain why antifreeze is used in vehicle radiators. Use your knowledge of the properties of

Fynjy0 [20]

Answer:

Antifreeze is whats used to keep your engine cool without freezing.

Explanation:

it keeps the engine from overheating.

It also prevents corrosion.

Here is a quote from google "Antifreeze works because the freezing and boiling points of liquids are “colligative” properties. This means they depend on the concentrations of “solutes,” or dissolved substances, in the solution. A pure solution freezes because the lower temperatures cause the molecules to slow down"

That quote is from "The Science Behind Antifreeze"

If you have any questions feel free to ask in the comments.

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3 years ago

a propane torch is lit inside a hot air balloon during preflight preparations to inflate the balloon. which condition of the gas

earnstyle [38]

Answer:

The pressure remains constant

Explanation:

this is an example in charles law where as the temperature increases so does the volume.

5 0

3 years ago

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