Chemistry > TEST BANKS > TEST BANK for Chemistry A Molecular Approach 5th Edition By Nivaldo (All)

TEST BANK for Chemistry A Molecular Approach 5th Edition By Nivaldo

Document Content and Description Below

TEST BANK for Chemistry A Molecular Approach 5th Edition By Nivaldo Chemistry: A Molecular Approach, 5e (Tro) Chapter 1 Matter, Measurement, and Problem Solving Multiple Choice Questions 1) ... Molecules can be described as A) mixtures of two or more pure substances. B) mixtures of two or more elements that have a specific ratio between components. C) two or more atoms chemically joined together. D) heterogeneous mixtures. E) homogeneous mixtures. Answer: C Diff: 1 Var: 1 Global: G1 Page Ref: 1.1 2) Identify the TRUE statement. A) Hydrogen peroxide is used as rocket fuel and removes color from hair. B) Hydrogen peroxide is safe to drink. C) Hydrogen peroxide is a stable molecule. D) Water reacts with skin. E) Hydrogen peroxide is smaller than water. Answer: A Diff: 2 Var: 1 Global: G1 Page Ref: 1.1 3) Which of the following represents a hypothesis? A) Sodium reacts with water to form sodium hydroxide and hydrogen gas. B) Argon gas is a fairly inert substance. C) Water is a liquid at room temperature. D) When a substance combusts, it combines with air. E) When paper burns, heat is given off. Answer: D Diff: 2 Var: 1 LO: 1.1 Global: G2 Page Ref: 1.2 4) The statement, "In a chemical reaction, matter is neither created nor destroyed" is called A) the Law of Conservation of Mass. B) Dalton's Atomic Theory. C) the Scientific Method. D) the Law of Multiple Proportions. E) the Law of Definite Proportions. Answer: A Diff: 1 LO: 1.1 Var: 1 Global: G1 [Show More]

Last updated: 5 months ago

Preview 1 out of 1092 pages

Buy Now

Instant download

We Accept: