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PSYCHO15rus [73]
3 years ago
15

Which is a chemical change?

Chemistry
2 answers:
Veseljchak [2.6K]3 years ago
8 0
I believe the a is the correct answer is d
Nonamiya [84]3 years ago
3 0
Here is your answer:

Your answer will be A "ice melting"!

Reason: A chemical change is a change where a object changes form such as Ice melting because the ice is changing from a Solid to a liquid.

Another Example is iron rusting its changes form!

Your answer is A!

Hope this Helps!
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Hope I helped :)

4 0
3 years ago
Consider the reaction.
Stella [2.4K]

Answer:

when the rates of the forward and reverse reactions are equal

Explanation:

In a chemical system, the reaction reaches a dynamic equilibrium when the rate of formation of product equals the rate of formation of reactants. This implies that both the forward and revered(backwards) reaction are occurring at the same rate.

5 0
3 years ago
No amino acid molecule by itself can speed up or catalyze reactions between other molecules; however, when amino acids are joine
Nadya [2.5K]

Answer:

That the enzyme is a protein

Explanation:

Remember the proteins are groups of thousands of amino acids, by their owns, since they are very small units, they can not act as a catalyst.

But as a polymer, the protein enzyme, have different shape, size and physical and chemical properties than a single monomer.

Remember also the proteins to be active, they need certain number of amino acids join together to form a specific shape that is going to match with another molecule to speed the chemical reaction and act as an enzyme.

8 0
3 years ago
Read 2 more answers
How many particles are in chemicals
stepan [7]

Answer:

6.022 x 10^23 particles

Explanation:

Chemists have chosen to count atoms and molecules using a unit called the mole (mol), from the Latin moles, meaning “pile” or “heap.”

One mole is 6.022 x 10^23 of the microscopic particles which make up the substance in question.

Hope this helped! :^)

4 0
2 years ago
How much space would one mole of grass take up?
Oduvanchick [21]

Answer:

If there's a grass area in the shape of a square and one side is 8 metres how much would it cost to fill the grass with fresh gravel at $5/metre

6 0
3 years ago
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