Who wants to f/u/c/k me so hard
Daddy please eat me out a...
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Chemistry, 22.06.2019 05:30
What is the mass of each element in a 324.8 sample of co2
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Chemistry, 22.06.2019 20:30
What is a difference between a mixture of elements and a mixture of compounds
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Chemistry, 23.06.2019 13:30
The zinc within a copper-plated penny dissolves in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can reach the zinc). the reaction between the acid and the zinc 2h+(aq)+zn(s)→h2(g)+zn2+(aq) . when the zinc in a certain penny dissolves, the total volume of gas collected over water at 25 °c is 0.947 l at a total pressure of 743 mmhg . (vapor pressure of water is 23.78 mmhg at 25 °c .) what mass of hydrogen gas is collected? answer in appropriate significant figures
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