Chemistry: The Central Science, 12e (Brown et al.)chapter 1 to 24 questions with correct answers

Chemistry: The Central Science, 12e (Brown et al.) Chapter 1 Introduction: Matter and Measurement 1.1 Multiple-Choice Questions 1) In the following list, only is not an example of matter. A) planets B) light C) dust D) elemental phosphorus E) table salt 2) What is the physical state in which matter has no specific shape but does have a specific volume? A) gas B) solid C) liquid D) salts E) ice 3) The law of constant composition applies to . A) solutions B) heterogeneous mixtures C) compounds D) homogeneous mixtures E) solids 4) A combination of sand, salt, and water is an example of a . A) homogeneous mixture B) heterogeneous mixture C) compound D) pure substance E) solid 5) A small amount of salt dissolved in water is an example of a _. A) homogeneous mixture B) heterogeneous mixture C) compound D) pure substance E) solid 6) Which one of the following has the element name and symbol correctly matched? A) P, potassium B) C, copper C) Mg, manganese D) Ag, silver E) Sn, silicon 7) Which one of the following has the element name and symbol correctly matched? A) S, sodium B) Tn, tin C) Fe, iron D) N, neon E) B, bromine 8) Which one of the following elements has a symbol that is not derived from its foreign name? A) tin B) aluminum C) mercury D) copper E) lead 9) Which one of the following is a pure substance? A) concrete B) wood C) salt water D) elemental copper E) milk 10) Which one of the following is often easily separated into its components by simple techniques such as filtering or decanting? A) heterogeneous mixture B) compounds C) homogeneous mixture D) elements E) solutions 11) Which states of matter are significantly compressible? A) gases only B) liquids only C) solids only D) liquids and gases E) solids and liquids 12) For which of the following can the composition vary? A) pure substance B) element C) both homogeneous and heterogeneous mixtures D) homogeneous mixture E) heterogeneous mixture 13) If matter is uniform throughout and cannot be separated into other substances by physical means, it is . A) a compound B) either an element or a compound C) a homogeneous mixture D) a heterogeneous mixture E) an element 14) An element cannot _ . A) be part of a heterogeneous mixture B) be part of a homogeneous mixture C) be separated into other substances by chemical means D) interact with other elements to form compounds E) be a pure substance 15) Homogeneous mixtures are also known as . A) solids B) compounds C) elements D) substances E) solutions 16) The law of constant composition says . A) that the composition of a compound is always the same B) that all substances have the same composition C) that the composition of an element is always the same D) that the composition of a homogeneous mixture is always the same E) that the composition of a heterogeneous mixture is always the same 17) Which of the following is an illustration of the law of constant composition? A) Water boils at 100°C at 1 atm pressure. B) Water is 11% hydrogen and 89% oxygen by mass. C) Water can be separated into other substances by a chemical process. D) Water and salt have different boiling points. E) Water is a compound. 18) In the following list, only is not an example of a chemical reaction. A) dissolution of a penny in nitric acid B) the condensation of water vapor C) a burning candle D) the formation of polyethylene from ethylene E) the rusting of iron 19) Gases and liquids share the property of . A) compressibility B) definite volume C) incompressibility D) indefinite shape E) definite shape ..........................................continued.........................................