Question

1. which of the following is a chemical change? (3pts) ice melts alcohol evaporates a rock is ground into sand silver tarnishes

Explanation:

A chemical change produces a new substance, while physical changes only alter form/state without creating new matter. Ice melting, alcohol evaporating, and rock grinding are physical changes (no new substance formed). Silver tarnishing involves silver reacting with sulfur in the air to form silver sulfide, a new substance, so it is a chemical change.

Answer:

silver tarnishes