Which statement about the balanced equations for nuclear and chemical changes is correct? (1 point)

Question

Responses

A nuclear equation is balanced according to mass number. A chemical equation is balanced according to the number of atoms before and after the change.
A nuclear equation is balanced according to mass number. A chemical equation is balanced according to the number of atoms before and after the change.

Both are balanced according to the total mass before and after the change.
Both are balanced according to the total mass before and after the change.

A chemical equation is balanced according to mass number. A nuclear equation is balanced according to the number of atoms before and after the change.
A chemical equation is balanced according to mass number. A nuclear equation is balanced according to the number of atoms before and after the change.

Both are balanced according to the number of atoms of each element before and after the change

Answer 1

The correct statement is:

A nuclear equation is balanced according to mass number. A chemical equation is balanced according to the number of atoms before and after the change.

In nuclear reactions, it is crucial to balance both the atomic numbers and mass numbers, while in chemical reactions, it is primarily about balancing the number of atoms of each element on both sides of the equation.