Question

Which best describes a chemical reaction?

A- the rearrangement of atoms by breaking and reforming chemical bond

B- a reaction that absorbs heat from the surroundings

C- a reaction that releases heat to the surroundings

D- the rearrangement of molecules based on temperature and pressure

Answer 1

Answer: A.

Explanation:

Answer 2

Answer:

chemical reaction is the rearrangement of molecules based on temperature and pressure

Explanation:

Chemical reaction occurs when molecules are rearranged with the aide of temperature and pressure or an enzyme to hasten the reaction