CHEM 120 UNIT 8 FINAL EXAM ACTUAL PAPER 2026 QUESTIONS SOLUTIONS GRADED A+

CHEM 120 UNIT 8 FINAL EXAM ACTUAL PAPER
2026 QUESTIONS SOLUTIONS GRADED A+

◉ scientific method. Answer: ways of learning that emphasizes
observation and experimentation (self correcting)


◉ observation. Answer: we go out in nature and ask questions we
measure or observe some aspect of nature


◉ hypothesis. Answer: tentative interpretation of an observation


◉ law. Answer: summarizes a large number of observations


◉ theory. Answer: model that explains and gives underlying causes
for observation


◉ imprecise. Answer: quick and easy like color


◉ precise. Answer: measuring and proving like numbers


◉ scientific notation. Answer: 1x10^6

, ◉ significant figures. Answer: indicates how good or bad a
measurement is


◉ all non zeros are. Answer: significant


◉ interior zeros. Answer: significant


◉ trailing zeros before a decimal place. Answer: significant


◉ trailing zeros after decimal place. Answer: significant


◉ 16.5400. Answer: 6 sig figs


◉ 130.. Answer: 3 sig figs


◉ 5003. Answer: 4 sig figs


◉ exact numbers. Answer: unlimited sig figs


◉ 3. Answer: unlimited sig figs