Question

1. a student stirs sugar into iced tea. which two statements describe this change? a. the sugar dissolves but remains the same substance. b. a new substance forms because the tea changes flavor. c. this is a physical change since the sugar could be recovered. d. a gas forms, showing a chemical change. e. the sugar completely disappears, showing it became new matter.

Explanation:

When sugar is stirred into iced - tea, it undergoes a physical change. Dissolving sugar in tea is a physical process as the sugar molecules disperse in the tea but remain sugar molecules (no new chemical substance is formed). Physical changes are reversible, and sugar can be recovered from the tea solution by evaporation.

Answer:

A. The sugar dissolves but remains the same substance.
C. This is a physical change since the sugar could be recovered.