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Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) What is the term for a tentative proposal of a scientific principle that attempts to explain the 1) meaning of a set of data collected in an experiment? A) hypothesis B) estimation C) theory D) natural law E) none of the above Answer: A Diff: 0 Type: MC 2) Which of the following is a positive association with the practice of chemistry?...

Introductory Chemistry: Atoms First, 5e (Russo/Silver) Chapter 1 What Is Chemistry? 1.1 Multiple-Choice Questions 1) Which of the following can be classified as matter? A) ice B) sugar C) graphite D) All of the above are matter. Answer: D Section: Section 1.2 Learning Outcome: 1.2 Define the types of mixtures in terms of the types of matter. Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills. 2) Which of the following cannot be classified a...

Name: Class: Date: chapter 1 Indicate the answer choice that best completes the statement or answers the question. 1. Which of the following steps is not part of the scientific method? a. analyze data b. test the hypothesis c. determine nature of the problem d. develop a theory to support the hypothesis 2. Identify whether vodka is a heterogeneous or homogeneous mixture. a. heterogeneous b. homogeneous 3. Identify whether steel is a heterogeneous or homogeneous mixture. a. heterogene...

1. In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. 2. A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: A) DNA. B) photosynthetic capability. C) plasma membranes. D) ribosomes. E) the nucleus. 3. In eukaryotes, the nucleus is enclosed by a double membrane called the: A) cell membrane. B) nuclear envelope. C) nucleolus. D) nucleoplasm. E) nucleosome. 4. The dimensio...

Organic Chemistry, 8e (Bruice) Chapter 1 Remembering General Chemistry: Electronic Structure and Bonding 1) Atoms with the same number of protons but different numbers of neutrons are called . Answer: isotopes Section: 1-1 2) Which of the following elements does this electronic configuration represent? 1s2 2s2 2p5 A) F B) C C) N D) Al E) O Answer: A Section: 1-2 3) How many unpaired electrons are present in the isolated carbon atom (atomic number = 6)? A) none B) one C) two D) t...

Name: Class: Date: Chapter 1 Multiple Choice 1. What is the molecular formula of limonene, the major volatile compound in orange peel oil? a. C10H18 b. C10H20 c. C10H16 d. C11H14 e. C11H18 ANSWER: c 2. Of those indicated, which would be the shortest carbon-carbon bond in -selinene? a. A b. B c. C d. D e. E ANSWER: b 3. What would be the ideal value for the indicated bond angle? a. 120° b. 90° c. 104°

Student name:__________ 1) What is the ground-state electronic configuration of a carbon atom? A) 1s 2, 2s 2, 2p 5 B) 1s 2, 2s 2, 2p 2 C) 1s2, 2s2, 2p6 D) 1s2, 2s2, 2p4 Question Details Difficulty : 1 Easy Topic : Structure and Bonding Chapter : 01 Accessibility : Keyboard Navigation Bloom's : 2. Understand Section : 01.01 2) What is the ground-state electronic configuration of a fluorine atom? A) 1s2, 2s2, 2p2 B) 1s2, 2s2, 2p3 C) 1s2, 2s2, 2p4 D) 1s2, 2s2, 2p5 Question Detail...

Name: Class: Date: Chapter 01 - The Atom in Modern Chemistry 1. Air is best classified as _____. a. an element b. a compound c. a homogeneous mixture d. a heterogeneous mixture ANSWER: c 2. A pure substance that is composed of only one type of atom is best classified as _____. a. an element b. a compound c. a homogeneous mixture d. a heterogeneous mixture ANSWER: a 3. Which statement best describes N2? a. It is an element. b. It is a compound. c. It is a homogeneous mixture. d....

Burtis, et al: Tietz Fundamentals of Clinical Chemistry, 6th Edition Test Bank Chapter 1: Principles of Clinical Chemistry and Evidence Based Laboratory Medicine MULTIPLE CHOICE 1. During diagnostic accuracy studies in evidence-based laboratory medicine, a laboratory test being studied, for example, produces results that are compared with the “gold standard” of testing, which would be the currently used assay or assay system. The test of interest is referred to as A. index test. B....

Name: Class: Date: Chapter 01: The Cell: A Microcosm of Life 1. Membrane lipid bilayers consist primarily of ____. a. phospholipids b. cholesterol c. proteins d. saturated fatty acids e. enzymes ANSWER: a 2. Which of the following is a common function of membrane proteins? a. receptors b. detoxifiers c. purifier d. neutron transporter e. storage proteins ANSWER: a 3. What is the role of cholesterol in plasma membrane structure? a. to produce bile b. to regulate fluidity and per...