The proportions of the major salts in seawater are constantly changing.
Answer the following statement true (T) or false (F)
False
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Why do we use the pH scale to indicate the acidity of a solution rather than simply stating the concentration of hydronium ions?
A) It includes the concentration of hydronium and hydroxide ions. B) It is used because the general public understands it. C) It is more accurate to use the pH scale. D) It is more convenient, since the concentration of hydronium ions is so small.
Which of the following is considered a regional scale air pollutant?
A) acid precipitation B) CFCs C) ozone depletion D) carbon monoxide E) hydrocarbons
Chemical activity increases and decreases directly with temperature, given equal availability of moisture
a. True b. False Indicate whether the statement is true or false
Worldwide, the single most important chemical weathering agent is ________
A) carbon dioxide B) water vapor C) water D) oxygen E) nitrogen