Chemistry

Chemistry: The Central Science, 13e (Brown et al.) Chapter 2 Atoms, Molecules, and Ions 2.1 Multiple-Choice Questions 1) A molecule of water contains hydrogen and oxygen in a 1:8 ratio by mass. This is a statement of . A) the law of multiple proportions B) the law of constant composition C) the law of conservation of mass D) the law of conservation of energy E) none of the above Answer: B Diff: 2 Var: 1 Page Ref: Sec. 2.1 LO: 2.1 GO: G2 2) Which one of the following is not one of t...

2 Chapter 1 The Foundations of Biochemistry Chapter 1 The Foundations of Biochemistry Multiple Choice Questions 1. Cellular foundations Pages: 2–4 Difficulty: 1 Ans: C In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. 2. Cellular foundations Page: 3 Difficulty: 1 Ans: E A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: A) DNA. B) photosynthetic capability. C) plasma m...

4-2 Chapter 4 Chemical Reactions and Stoichiometry Multiple Choice Questions 1) What are the required coefficients to properly balance the following chemical reaction? H2(g) + Cl2(g) → HCl(g) A) 1, 1, 2 B) 2, 2, C) 1, 1, 1 D) 2, 1, 2 E) 1, 2, 1 Answer: A Diff: 1 Type: MC Var: 1 Page Ref: 4.2 2) What are the required coefficients to properly balance the following chemical reaction? SO2(g) + O2(g) + H2O(l) → H2SO4(aq) A) 1, 1, 1, 1 B) 1, 2, 1, 2 C) 1, 2, 2, 1 D) 2, 1, 2, 2 E)...

Introduction to General, Organic & Biological Chemistry, 12e (Timberlake) Chapter 1 Chemistry in Our Lives 1.1 Multiple-Choice Questions 1) Water, H2O, is an example of a(n) ________. A) chemical B) solid C) wave D) electric charge E) element Answer: A Page Ref: 1.1 Learning Obj.: 1.1 Global Outcomes: G7 Demonstrate the ability to make connections between concepts across chemistry. 2) In this list, which substance can be classified as a chemical? A) salt B) sleep C) cold D) hea...

Chapter 1: Chemistry: The Study of Change Chapter 1: Chemistry: The Study of Change 1. A tentative explanation for a set of observations that can be tested by further experimentation is referred to as A) a hypothesis. B) a law. C) a theory. D) none of the above. Ans: A Category: Easy Section: 1.3 2. A concise verbal or mathematical statement of a relationship between phenomena that is always the same under the same conditions is referred to as A) a hypothesis. B) a law. C) a theory. D) n...

Chemistry: A Molecular Approach, 3e (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 has a specific ratio between components. C) two or more atoms chemically joined together. D) heterogeneous mixtures. E) homogeneous mixtures. Answer: C Diff: 1 Page Ref: 1.1 2) Give the composition of water. A) two hydrogen atoms and two oxygen atoms ...

CHAPTER 1—COVALENT BONDING AND SHAPES OF MOLECULES MULTIPLE CHOICE 1. How many electrons can the shell with a principal quantum number of 1 hold? a. 1 b. 2 c. 4 d. 8 ANS: B 2. How many electrons can the shell with a principal quantum number of 2 hold? a. 1 b. 2 c. 4 d. 8 ANS: D 3. What is the ground-state electronic configuration of a nitrogen atom (nitrogen: atomic number 7)? a. 1s22s12p4 b. 1s22s22p3 c. 1s12s12p5 d. 1s22s22p2 ANS: B 4. What is the ground-state electronic ...

Chapter 1: Structure Determines Properties Chapter 1: Structure Determines Properties 1. What is the ground state electron configuration of carbon? A) 1s22s22px1 B) 1s22s22px2 C) 1s22s22px12py1 D) 1s22s22px22py1 Ans: C 2. Which of the following has (have) the same electron configuration as Ne? Na- Mg2+ O2- Mg+ A) Na- and O2- B) Mg2+ and O2- C) Mg+ and O2- D) only Mg2+ Ans: B 3. What is the letter designation given to dumbbell shaped orbitals like the one depicted below? A) s B) p C) d...

Chapter 3 Topic: Introduction to Bronsted-Lowry Acids and Bases Section 3.1 Difficulty Level: Easy 1. Is the indicated compound acting an acid or a base in the following reaction? O + O OH O + A. Acid B. Base C. Neither Ans: B Topic: Introduction to Bronsted-Lowry Acids and Bases Section 3.1 Difficulty Level: Easy 2. Is the indicated compound acting an acid or a base in the following reaction? H2SO4 + O HSO4 + O H A. Acid B. Base C. Neither Ans: A Topic: Introduction to B...

Organic Chemistry, 8e (Wade) Chapter 1 Introduction and Review 1) While you were up late one night studying organic chemistry, you happened to see the last 5 minutes of an infomercial on TV. The spokesperson claimed that their brand of automobile tires were superior to all other brands on the market because they were made by using only natural rubber, isolated from the resin of rubber trees. How could a chemist test her claims that no petroleum products went into the manufacture of her bra...

Chapter 1—Exploring the World of Business and Economics ESSAY 1. In your own words, describe what you “bring to the table” as a potential employee of a company that you desire to work for. ANS: Answer not provided. PTS: 1 REF: p. 5-7 OBJ: 1-1 NAT: AACSB: Communication TOP: Your Future in the Changing World of Business 2. How can online networking improve your chances of success in the business world? ANS: Answer not provided. PTS: 1 REF: p. 6 OBJ: 1-1 NAT: AACSB: Communication ...