Summary
Summary CHEMISTRY: THE MOLECULAR NATURE OF MATTER AND CHANGE 7TH EDITION
Chapter 1 keys to study of chemistry Step 1 1 of 3 In this task, we have to answer if A+B results in C, is it a physical or a chemical change? First, let`s look at the substances we have at the beginning. We have gas molecules (red molecules) and solid molecules (blue molecules). In this case, ...
[Show more]