Chem Final Exam Questions And Answers

Chem Final Exam g g


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Chem Final Exam Questions And Answers

1. Define Chemistry: The study of matter and its composition and transformation
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2. Which of the following is a properity of both the liquid and solid state?
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a. definite shape g


b. an indefinite volume
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c. indefinite shape and a definite volume g g g g g


d. More than one response g g g


e. no correct response: E. No correct response
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3. Which of the following is true about compounds and mixtures?
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a. Both must contain two or more kinds of atoms
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b. Mixtures always contain at least one compound g g g g g g


c. Both can have a variable composition
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D. More than one correct response
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E. No correct response: A. Both must contain two or more kinds of atoms
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4. The Measurement 85,943,000 expressed in scientific notation becomes...: -
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8.5943x10^7
5. What is the mass, in grams, of 35.6ml of a liquid if the density is 0.75g/ml?-
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: 35.6ml x 0.75g/ml= 27
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6. Which of the following concerning specific hear is correct?
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a. Specific heat can be measured only when the substance is in a solid state.
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b. Under similar circumstances, substances with low specific heat increase in t
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emp more when heated than do substances with high specific heat.
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c. A correct set of units of specific heat is cal/*C d
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.More than one correct response
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e. No correct responses: B. Under similar circumstances, substances with low spec
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c heat increase in temperature more when heated than do substances with high speci
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c heat.
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7. An atom has 51 protons, 53 neutrons and 51 electrons. The atomic number a
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nd mass number for this atom are, respectively....: Atomic #: 51
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Mass #: 104 g g


8. Which of the following pairs of elements are both in the same period?
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a. Kr and Na g g


b. Cr and W g g


c. Ca and Ge g g


d. F and Cl: C. Ca and Ge
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1g/g7

, Chem Final Exam
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9. Which of the following has the valence electrons listed correctly?
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a. Al-3
b. Cl-5
c. Si-2




2g/g7