Exam 1 Review

Exam 1 Review - Chemistry 1001 Exam 1 Review True/False...

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Chemistry 1001 Exam 1 Review True/False Questions 1) The mass of an object, 0.000455 g, expressed in scientific notation is 4.55x10^-3 g. False 2) Exact numbers have an unlimited number of significant figures. True 3) If you know the density of a liquid and its volume, the mass of the liquid may be calculated using the equation: m=V/d. False 4) Both carbon dioxide molecules and water molecules consist of three atoms bonded together with atoms arranged as in a triangle. False 5) Saltwater is a homogeneous mixture that can be boiled at a fixed temperature. False 6) In physical changes, the atoms or molecules that compose the matter do not change their identity, even though the matter may change its appearance. True Multiple Choice 7) Which of the statements below is NOT ALWAYS part of the scientific method? Using scientific notation 8) Which of the following is an example of a scientific theory? a. All matter is composed of small, indestructible particles called atoms. b. In a chemical reaction, matter is neither created nor destroyed. c. When a can of soda pop is opened, a fizzing sound is heard. d.
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Exam 1 Review - Chemistry 1001 Exam 1 Review True/False...

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