Which of the following statements is true?
A) All diols are glycols.
B) All glycols contain both a primary and a secondary alcohol.
C) All glycols are diols.
D) All glycols must have at least three carbon atoms.
C
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Which of the following is not true of hard water?
A) It increases the permeability of rocks. B) It may add toxic metals to drinking water. C) It may clog pipes. D) It decreases the effectiveness of soaps.
What general weather conditions are to be expected when the pressure tendency is rising? When the pressure tendency is falling?
What will be an ideal response?
Olivine and quartz are commonly found together in the same igneous rock
Indicate whether the statement is true or false
Which of the following substances is closely associated with the breakdown of the ozone layer?
A) Carbon dioxide B) Chlorofluorocarbons C) Nitrogen oxides D) Water vapor E) Infrared radiation