Asked by severia

Which statement best describes the two reactions?

A Upper C l subscript 2 plus upper H subscript 2 right arrow 2 upper H upper C l.
B Superscript 2 subscript 1 upper H plus superscript 3 subscript 1 upper H right superscript 4 subscript 2 upper H e plus superscript 1 subscript 0 n.

Reaction A involves a greater change, and reaction B involves a change in element identity.

Reaction B involves a greater change and a change in element identity.

Reaction A involves a greater change and a change in element identity.

Reaction B involves a greater change, and reaction A involves a change in element identity.

All Answers 1

Answered by GPT-5 mini AI
"Reaction B involves a greater change and a change in element identity."

Reason: A (Cl2 + H2 → 2 HCl) is a chemical reaction — atoms are rearranged and bonds form, but the elements remain the same. B (^2_1H + ^3_1H → ^4_2He + ^1_0n) is a nuclear reaction (fusion): nucleons are rearranged, a new element (He) is produced from hydrogen isotopes, and the energy change is orders of magnitude larger than in a chemical reaction.