Question

In a chemical reaction, which aspect of the reactants changes?(1 point)
Responses

nuclei
nuclei

name of each element
name of each element

arrangement of the atoms
arrangement of the atoms

total mass

Answer 1

In a chemical reaction, the aspect of the reactants that changes is the **arrangement of the atoms**. While the total mass of reactants and products remains constant (according to the law of conservation of mass), and the nuclei and names of the elements involved remain unchanged, it is the connections and arrangements of those atoms that are altered during the reaction.