Question

which of the following choices is an example of a chemical change? a rusty car melting ice cream solid butter

Explanation:

A chemical change results in a new substance being formed. Rusting of a car is a chemical reaction where iron reacts with oxygen and water to form iron oxide (rust). Melting ice - cream is a physical change (change of state from solid to liquid), and solid butter is just a state of matter and not a chemical change.

Answer:

a rusty car