Answer:
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Explanation:
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I believe the density p1 is greater than the density p2 .
Since the liquid are at equilibrium in the the open U-tube, the pressure at which the liquids meet should be the same. That is at the position where they are in contact, the pressure that liquid 1 exerts at that point is the same as the pressure exerted by liquid 2 at the point.
Answer:
C. water freezes (is the answer)
19) it's not balanced because when adding h2 and o2 u get h2o2 not h2o
20) I'm not sure
