The correct answer is:
observe a color change
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
test for the release of heat
test for the release of heat
monitor for the release of a gas
monitor for the release of a gas
observe a color change
observe a color change
conduct a test to determine the chemical makeup of the molecules
which one
1 answer