General Chemistry II Questions & Answers
General Chemistry II Questions & Answers __________ are used in automotive catalytic converters. Homogeneous catalysts Noble gases Nonmetal oxides Enzymes Heterogeneous catalysts - CORRECT ANSWER- Heterogeneous catalysts A 0.1 M solution of which salt is the most basic? NaNO3, NaClO4, NaHSO4, NaHCO3 - CORRECT ANSWER- NaHCO3 A endothermic reaction produces or absorbs heat? - CORRECT ANSWER- Absorbs A exothermic reaction produces or absorbs heat? - CORRECT ANSWER- Produces A mechanism for a naturally occurring reaction that destroys ozone is: Step 1: O3(g) + HO(g) → HO2(g) + O2(g) Step 2: HO2(g) + O(g) → HO(g) + O2(g) Which species is a catalyst? HO2 O HO O3 - CORRECT ANSWER- HO A sample of neon gas is held at 25 C and 1.0 atm in a cylinder with a movable piston. Under these conditions the gas occupies 5.0 L. What volume does the gas occupy at 12.5 C and 1.0 atm? 2.5 L 4.8 L 5.2 L 10 L - CORRECT ANSWER- 4.8 L A white ionic solid is dissolved in water. Addition of a solution of sodium chloride to this solution results in a white precipitate. What was the cation in the original ionic solid?
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