which of the following is possible because of the high

| March 14, 2016

Question
1. which of the following is possible because of the high surface tension of water?

a) sweat can evaporate from the skin, helping to keep people from overheating

b) lakes cannot freeze solid in winter, despise low temperatures

C) organisms can resist temperature changes, although they give off heat due to chemical reactions

D) animals such as certain insects and spiders can walk across the surface of a small pond

2. A buffer:

a) added to a solution will always make the solution neutral, with a PH of 7

b) prevents the PH of a solution from changing when acid or based is added

C) Causes acidic solutions to become alkaline, and alkaline solutions to become acidic

D) stabilizes the PH of a solution by preventing acids or bases from Dissociating

F) ACCEPTS HYDROGEN IONS WHEN THEY ARE IN EXCESS AND DONATES HYDROGEN IONS WHEN THEY HAVE BEEN DEPLETED

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