Chemistry, 28.03.2021 03:20, jasminelynn135owmyj1
Cu(oh)2=cuo+h2o stoichemotry
Calculate the molar mass of each reactant and product.
Step 3 Use stoichiometry to determine the grams of CuO and grams of H2O produced.
Step 4 Calculate the percent yield of CuO for this reaction.
Answers: 2
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Which of the following mining methods disrupts the sea floor?
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Chemistry, 22.06.2019 11:40, Wemaybewrong
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) โ h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 ยฐc. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Chemistry, 22.06.2019 22:00, choatefarmsus
Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.
Answers: 3
Cu(oh)2=cuo+h2o stoichemotry
Calculate the molar mass of each reactant and product.
Step 3 Us...
Step 3 Us...
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