Question

Sodium is a metal that explodes in water, while chlorine is a poisonous gas. When combined, however, they make edible table salt. Why?

Group of answer choices

1) When atoms bond they undergo a chemical change, which changes their physical properties.

2) Two negatives make a positive

3) Salt is actually still poisonous, because of the chlorine in it.

4) The sodium and the chlorine have undergone a physical change, into a solid. The solid part is edible.

Answer 1

Option B

Step-by-step explanation:

While adding salts to water is a pretty safe chemical reaction, in its elemental state, each component can be highly reactive. Sodium and chlorine both react violently with water, but are stable when their ions are together in a salt.