152 Final Exam API 2 Chemistry1 Multiple Choice (4 points each) 6. Which of the

Question

152 Final Exam API 2 Chemistry1 Multiple Choice (4 points each) 6. Which of the following is NOT a physical property? a. color b. flammability c. density d. boiling point 7. The difference between a mixture and a compound is a. a mixture is a pure substance and a compound is not B. a mixture is made from simpler substances and a compound is not ompabe separated by taking advantage of differences in physical properties d. mixtures and compounds are the same of the components 8. As we go across a row on the periodic table a. metals become more reactive while nonmetals become less reactive b. metals become less reactive while nonmetals become more reactive c. both metals and nonmetals become more reactive d. both metals and nonmetals become less reactive 9. For an ideal gas at constant temperature and pressure a. the volume is also constant b. the volume varies as the number of moles c. the volume varies inversely as the number of moles d. the volume and number of moles are unrelated 10. Which of the following is true for an acid a. they are electron donors b. they have high pH c. they produce H30* d. they are very unreactive

Explanation / Answer

1. Flammability is the chemical property which tells about the tendency of a substance to burn.

2. (c) mixture can be separated by physical methods such as filtration, screening, sedimentation , chromatography etc.

3. (c)metals become less reactive and non-metals more reactive.

4. (b)By PV=nRT volume is dependent on number of moles.

5(a) By arrehinus theory they lose electron.

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