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Which of the following sentence best describes a buffer? A. A substance that resists small change in the acidity of a solution when an acid or base is added to the solution. B. a chemical substance that
asked
Sep 19, 2017
Biology
high-school
1
answer
3
votes
137k
views
Divide 72 kg in a ratio of 1:3:5
asked
Oct 13, 2016
Mathematics
high-school
2
answers
1
vote
17.3k
views
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