Study guides, Class notes & Summaries

Chapter 1 Scientific Measurements Multiple Choice Questions 1. A tentative explanation used to explain observed facts or laws is called a. the scientific method. b. a scientific law. c. a theory. d. a hypothesis. e. an empirical fact. Answer: d Section 1.1 Difficulty Level: easy 2. A broad generalization based on the results of many experiments is called a. the scientific method. b. a scientific law. c. a theory. d. a hypothesis. e. an empirical fact. Answer: b Section 1.1 Di...

Chapter 1: The Nature of Chemistry 1. Modern research requires a. communication skills b. collaboration skills c. knowledge in a particular field d. a willingness to think about the world e. all of the choices above ANSWER: e POINTS: 1 TOPICS: 1.1 Why Care About Chemistry? OTHER: Comprehension NOTES: Grasp meaning 2. For a chemist, understanding a chemical reaction means: a. knowing what makes up a reacting atom. b. knowing what atoms make up a reacting molecule. c. knowing how at...

Chapter 1 Matter, Energy, and Measurement Multiple Choice 1. Which of the following is MOST commonly used to assess the strength of a bone? a. bone density b. nutrition and exercise data c. bone mass d. blood samples e. calcium measurement ANSWER: a 2. A person with a T-score of less than –2.5 has a bone mineral density that ______ normal and is said to have ______. a. is; normal bone density b. is less than; normal bone density c. is less than; osteoporosis d. is greater than; o...

Chapter 01 - Chemistry: Matter on the Atomic Scale 1. Which of the following would you classify as nano-scale? a. An amoeba (a unicellular animal) b. Grounded coffee c. A water molecule d. A cell membrane e. An ore of gold ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False DATE CREATED: 3/5/2014 6:46 PM DATE MODIFIED: 1/11/2017 4:38 AM The following information will be used to answer questions 2-6. A) B) C) D) E) 2. Which of the figures above depicts a gaseou...

General, Organic and Biological Chemistry, 4e (Smith) Chapter 1 Matter and Measurement 1) Which is NOT an example of a pure substance? A) Sugar B) Air C) Aluminum foil D) Water E) A block of dry ice Answer: B Difficulty: 1 Easy Topic: Study of Chemistry Bloom's: 1. Remember Subtopic: Classification and States of Matter Accessibility: Keyboard Navigation Chapter: 01 2) Which is an example of a physical change? A) The rusting of an iron nail B) The burning of propane in a gas gr...

General, Organic, and Biological Chemistry, 3e (Frost) Chapter 1 Chemistry Basics - Matter and Measurement 1.1 Multiple-Choice 1) Which of the following is an example of a heterogeneous mixture? A) Sugar water B) Blood C) Air D) Vodka Answer: B Diff: 1 Section: 1- 1 Global: G1 LO: 1.1 2) Which of the following is a pure substance? A) Sugar B) Sand C) Gold D) Maple syrup Answer: C Diff: 1 Section: 1-1 Global: G1 LO: 1.1 3) Which of the following represents a homogeneous mi...

General, Organic, and Biological Chemistry, 4e (Frost) Chapter 1 Chemistry Basics — Matter and Measurement 1.1 Multiple Choice Questions 1) Which of the following is an example of a heterogeneous mixture? A) Sugar water B) Trail mix C) Air D) Vodka Answer: B Diff: 1 Section: 1-1 Global: G1 LO: 1.1 2) Which of the following is a pure substance? A) Sugar B) Sand C) Gold D) Maple syrup Answer: C Diff: 1 Section: 1-1 Global: G1 LO: 1.1 3) Which of the following represents a ...

Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) In the number 12.345, the 3 is in the ________ place. 1) A) tens B) ones C) tenths D) hundredths E) thousandths Answer: C Diff: 0 Type: MC TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 2) In the number 123.45, the digit 5 is in the hundreds place. 2) Answer: True False Diff: 0 Type: TF 3) Para...

Chapter 1 1. Which of the following is an example of matter? a. the light of a flame b. the sound of thunder c. the air you breathe d. None of these are matter. ANSWER: c TOPICS: 1.1 - CHEMISTRY AND STUDY OF MATTER KEYWORDS: BLOOM'S: REMEMBER 2. Which of the following is not an example of matter? a. the air in your lungs b. the blood in your arteries c. the sunlight coming through the window d. None; all of these are matter. ANSWER: c TOPICS: 1.1 - CHEMISTRY AND STUDY OF MATTER ...

Chapter 1 - Covalent Bonding and Shapes of Molecules Package Title: Brown/Poon Test Bank Course Title: Brown/Poon 6e Chapter Number: 1 Question type: Multiple Choice Section 1.1 Difficulty Level: Easy 1. Which is the electronic configuration that describes Mg2+? a) 1s2, 2s2 b) 1s2, 2s2, 2p6 c) 1s2, 2s2, 2p6, 3s2 d) 1s2, 2s2, 2p6, 3s2, 3p6 Answer: b Section 1.1 Difficulty Level: Easy 2. Which is the electronic configuration that describes a neutral carbon atom? a) 1s2, 2s2, 2p5 b...