Question

Which best describes a chemical reaction?

the rearrangement of atoms by breaking and reforming chemical bonds
a reaction that absorbs heat from the surroundings
a reaction that releases heat to the surroundings
the rearrangement of molecules based on temperature and pressure

Answer 1

Answer:

a reaction that absorbs heat from the surrounding

Answer 2

Answer:

chemical reaction is a process in which one or more substance, also called reactants are converted to one or more different substance ,known as productes ......a chemical reaction rearranges the constituent atom of the reaceant to create different substance as product