1-4 - Question1 2/2points

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Question 1 2 / 2 points
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Which of the following statements is  true  about buffer solutions? Question options:  A) They maintain a constant pH when bases are added to them but not when acids are added to them. B) They maintain a constant pH when acids are added to them but not when bases are added to them. C) They maintain a constant pH of exactly 7 in all living cells and biological fluids. D) They maintain a relatively constant pH when either acids or bases are added to them. E) They are found only in living systems and biological fluids. Question 2 2 / 2 points One liter of a solution pH 9 has how many more hydroxyl ions (OH - ) than 1 L of a solution of pH 4? Question options:  A) 5 times more B) 100 times more C) 1,000 times  more D) 10,000 times  more E) 100,000 times  more Question 3 2 / 2 points Pure, freshly-distilled water has a pH of 7. This means that
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1-4 - Question1 2/2points

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