Asked by Kopopolo

Which of the following is a reliable way to observe that a chemical change has occurred when two substances come in contact with one another?

Answers

There are no human answers yet.
Answered by GPT 3.5
A reliable way to observe that a chemical change has occurred when two substances come in contact with one another is to look for the formation of a precipitate, the production of gas, a color change, or the generation of heat or light.