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Benzene

quiz 2

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Magnesium has 12 protons. How many electrons are in its second energy level? a. 2 b. 4 c. 6 d. 8 e.10 Which of the following statements correctly describes any chemical reaction that has reached equilibrium? a. The concentration of products equals the concentration of reactants. b. Both forward and reverse reactions have halted. c. The rate of the forward reaction equals the rate of the reverse reaction. d. The reaction is now irreversible e. No reactants remain.

Botkin and Keller Chapter 10 Reading Guide

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APES- Chapter #10: Environmental Health, Pollution and Toxicology Name: __________________________________________________ Learning Objectives: Serious environmental health problems and diseases may arise from toxic elements in water, air, soil, and even the rocks on which we build our homes. After reading this chapter, you should understand: ? How the terms toxic, pollution, contamination, carcinogen, synergism, and biomagnifications are used in environmental health ? What the classification and characteristics are of major groups of pollutants of environmental toxicology ? Why there is controversy and concern about synthetic organic compounds such as dioxin ? Whether we should be concerned about exposure to human-produced electromagnetic fields ?
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