cq01 - Clicker Question 1-1 All of the following statements...

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Clicker Question 1-1 All of the following statements are true except a. Laws are statements of relationships that seem to always be the same. b. Theories are proven explanations of experimental observations. c. Hypotheses are tentative explanations of experimental observations. d. Laws summarize facts of nature and rarely change. e. Theories are unifying principles that explain a body of facts.
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Clicker Question 1-2 A pure substance that is composed of two or more different elements is a. a chemical compound. b. an atom. c. a heterogeneous mixture. d. a homogeneous mixture. e. none of the above.
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Clicker Question 1-3 Which of the following is not an element? a. lithium b. iron c. water d. hydrogen e. silver
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Clicker Question 1-4 Which of the following is not a compound? a. salt b. water c. potassium d. sugar e. alcohol
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Clicker Question 1-5 Which of the following is a heterogeneous mixture? a. saline solution (sodium chloride dissolved in water) b. gasoline c. antifreeze (a mixture of water and ethylene glycol) d. Dijon mustard e. Gatorade
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cq01 - Clicker Question 1-1 All of the following statements...

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