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

which of the following choices is an example of a chemical change? a rusty car melting ice cream solid butter
Answer
Brief Explanations:
A chemical change results in a new substance being formed. Rusting of a car is a chemical reaction where iron reacts with oxygen and moisture 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 physical state.
Answer:
A. a rusty car