Question

in a chemical reaction, which aspect of the reactants changes? (1 point)
arrangement of the atoms
total mass
nuclei
name of each element

Explanation:

• In a chemical reaction, atoms are rearranged to form new substances (products). The total mass remains constant (Law of Conservation of Mass), nuclei are not altered (that's nuclear reactions), and the elements' names don't change as elements themselves don't change, only their bonding/arrangement. So the arrangement of atoms changes.

Answer:

A. arrangement of the atoms