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?(1 point) Responses observe a color change observe a color change conduct a test to determine the chemical makeup of the molecules conduct a test to determine the chemical makeup of the molecules test for the release of heat test for the release of heat monitor for the release of a gas

All of the options listed can be reliable ways to observe that a chemical change has occurred when two substances come in contact with one another. However, if I have to choose only one option, the best answer would be: observe a color change.