Which of the following indicates that a ChemicL change has taken place?
(A) a change from liquid to a gas
(B) an increase in the volume of a substance
(C) a change in the color of a substance
(D) a change from a solid to a liquid
A precipitate is a gas formed from the chemical of two substance.
(A)True
(B)False
Which of the following is a chemical change?
(A) melting ice
(B) boiling water
(C) a burning candle
(D) frost forming inside a freezer