Which statement is true? (1 point)

Question

Atoms are added and removed during chemical reactions.
Molecules always remain intact during chemical reactions.
Atoms always remain intact during chemical reactions.
Molecules are added and removed during chemical reactions.

Answer 1

The true statement is: Molecules are added and removed during chemical reactions.

In a chemical reaction, bonds are broken and formed, leading to the transformation of reactant molecules into product molecules. Atoms themselves are not created or destroyed but are rearranged during the reaction. Therefore, molecules can be considered as added (reactants) or removed (products) throughout the process.