There are several different indicators that a chemical change has taken place. Which of the following examples would be considered an indicator that a chemical reaction has taken place?(1 point)
Responses
A liquid freezes
A liquid freezes
A Substance has dissolved
A Substance has dissolved
The shape of paper changes as it is cut
The shape of paper changes as it is cut
Heat is given off after mixing two substances
1 answer
Heat is given off after mixing two substances