Chemistry, 26.01.2020 09:31 maribelmartine8919
Which type of fertilization and development is exhibited by birds and many reptiles?
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This is a mixture that has the same composition throughout.
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Did the detergents containing enzymes work better at removing stains than those containing no enzyme? why or why not?
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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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Chemistry, 23.06.2019 18:10
Dalton completing an investigation in the science lab he observes that a sample of liquid turns to gas at 135c what’s this temperature called?
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Which type of fertilization and development is exhibited by birds and many reptiles?...
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