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How many grams of mercury are present in a barometer that holds 7.0 mL of mercury? Please help in detail!? How many molecules are in a snowflake containing 8.00 10-5 g of H2O? Can you help me answer this problem? i don't know how to compute this one.? I had wrist repair surgery 10 days ago, and was wondering if if I should use an antibacterial crÃ¨me or other lotion on the incision.? Bobsimpson goes to the store and buys an equal number of 35 cent candies and 30 cent candies for 22.75.How much candies did he buy 35 or 68?