This exam consists of 25 multiple-choice questions worth 5 points each. Choose the one best or correct answer for each question and write it both on your exam paper and on the computer answer sheet. This exam consists of 7 pages. For all relevant questions, significant figures and units are important. Copper turns greenish when exposed to chlorine.
Copper is a good conductor of electricity.
Alcohol can be burned in an engine. Salt dissolves in water. No processes are exothermic. One process is exothermic. All processes are exothermic.