Question

Which statement correctly describes a chemical reaction?
Reactants come out of a reaction.
Energy is always released.
Bonds between atoms break and reform.
Products go into a reaction.

Answer 1

Answer:

Bonds between atoms break and reform

Answer 2

Bonds between atoms break and reform correctly describes a chemical reaction.

• Chemical reaction refers to rearrangement of atoms and their bonds in reactants to yield new substances which are called products.
• Reactants go into the reaction and products are yielded from the reaction.
• Reaction may require energy, which is called endothermic reaction or it may release energy, which is called exothermic reaction.