When substances go through chemical changes, which of the following will always happen?

Question

A.
Exactly one new substance will form and one will be destroyed.
B.
One or more substances with different chemical properties will form.
C.
A gas will form or a white solid will precipitate.
D.
One or more substances will be completely destroye

Answer 1

The correct answer is:

B. One or more substances with different chemical properties will form.

In a chemical change, the original substances (reactants) are transformed into new substances (products) that have different chemical properties from the reactants. This is a fundamental characteristic of chemical reactions.

While gases may form or precipitates may occur in some reactions, this is not always the case, so options C and D are not universally true. Option A implies a specific number of substances is formed and destroyed, which is also not accurate as reactions can involve various numbers of substances.