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
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
Heat is given off after mixing two substances
A Substance has dissolved
A Substance has dissolved
A liquid freezes
1 answer
Heat is given off after mixing two substances
28 answers