Which of the following involves a change in the physical properties of original substance?

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

How does nathan’s hypothesis lead to new investigations