Question

Which of the following is the most likely sign that a chemical change has happened?

A. Liquid rests on a table overnight, and some evaporates.
B. Salt is mixed into water, forming a solution.
C. A solid is crushed into very small pieces.
D. Two liquids are mixed at room temperature and a gas forms.

Answer 1

@jigglypuff314

Answer 2

Which one do you think it is?

Answer 3

@2kende

Answer 4

D) It may have involved a reaction of the two liquids to form a product in a gaseous state.

Answer 5

Yes, it's D.