A chemical reaction involves many changes but not everything changes during a reaction.Which of the following is NOT a change that occurs during a chemical reaction?
A) Atoms change in number or identity.
B) Bonds break.
C) Heat is released and/or absorbed.
D) New bonds form.
E) New molecules are formed.

Question

Quizplus · Accepted Answer

During a chemical reaction, atoms do not change in number or identity. Instead, the way they are bonded together changes, leading to the breaking and forming of new bonds, the release or absorption of heat, and the creation of new molecules. The number and identity of atoms remain constant, adhering to the law of conservation of mass.

A Chemical Reaction Involves Many Changes but Not Everything Changes