CHEM 117 Practice Exam 1 | 50 Questions with 100% Correct Answers | Updated & Verified

CHEM 117 Practice Exam 1 Which of the following chemical symbols corresponds to bromine? a) Ba b) Bo c) Br d) Be e) B - ✔✔C Which of the following is an example of a chemical change? a) deposition b) evaporation c) sublimation d) burning in air e) freezing - ✔✔D If Earth is 1.50 x 108 km from the Sun, what is the distance in Mm ? a) 1.50 x 1017 Mm b) 1.50 x 105 Mm c) 1.50 x 10 -1 Mm d) 1.50 x 102 Mm e) 1.50 x 108 Mn - ✔✔B If 0.230 g of sodium metal reacts with 0.355 g of chlorine gas, what is the mass of sodium chloride produced? a) 0.585 g b) 0.125 g c) 0.230 g d) 0.3555 g e) 1.00 g - ✔✔A Who is considered the father of modern chemistry? a) Aristotle b) John Dalton c) Antoine Lavoisier d) Robert Boyle e) Albert Einstein - ✔✔C Which of the following is an example of a physical property? a) texture b) hardness c) boiling p oint d) color e) all of the above - ✔✔E Which of the following properties of gasoline is a chemical property? a) insoluble in water b) boiling point, 97 °C c) colorless liquid d) density, 0.692 g/mL e) undergoes combustion - ✔✔E A block of aluminum has a mass of 39.589 g and measures 5.10 cm by 2.50 cm by 1.15 cm. What is the density of the rectangular aluminum block? a) 22.3 g/cm3 b) 14.7 g/cm3