Acetic acid, CH3COOH, is a stronger acid than the ammonium ion, NH4+. When acetic acid reacts with ammonia, NH3, what species are present in the solution in the largest amount?
A) acetic acid, CH3COOH and ammonia, NH3
B) acetic acid, CH3COOH, and ammonium, NH4+
C) acetate ion, CH3COO-, and ammonia, NH3
D) acetate ion, CH3COO-, and ammonium ion, NH4+
D
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Indicate whether the statement is true or false
Transuranic wastes are materials that have been contaminated with ________
A) elements with an atomic number greater than that of uranium B) urine C) gamma rays from distant parts of the solar system, beyond Uranus D) transuranic acid
The synthesis of cholesterol is completed by the condensation of which of the following?
A) two farnesyl pyrophosphates B) two geranyl pyrophosphates C) a farnesyl pyrophosphate with a geranyl pyrophosphate D) none of the above
Which of the following explains why clay-rich soils are less permeable than sandy soils?
A. clay particles are electrically charged and very small. B. clay soils have greater porosity. C. pores spaces of clay soils become plugged with sand grains. D. sandy soils tend to form in areas with abundant rainfall. E. sandy soils have greater vegetation cover.