Question

15. Do enzymes speed up or slow down chemical reactions?
16. What happens to water when you heat it to 100°C?​

Answer 1

Answer:

here's ur answer dude

Explanation:

16) Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.

17) At 100 degrees nucleate boiling occurs, a lot of molecules escape the liquid water throughout the mass of water, form bubbles, rise and escape into the air. All at standard pressure, of course.

hope it helps

Answer 2

Answer:

15) Enzymes are actually catalysts mentioned here

They speed the rate of reaction without being consumed in the reaction

For example if the rate of the reaction increases the activation energy of the reaction decreases.

An example for a catalyst is

presence of iron in Habers process

16) Boiling point of water is 100°c

So water starts boiling on heating and turns into vapour

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