Chemistry, 23.10.2020 14:00, khristaviaaa
3
Question 1 (1 point)
If you have 50 grams of H2SO4 and excess Al, how many grams of Al2(SO4)3 are
produced during the following reaction?
2 Al + 3 H2SO4 - Al2(SO4)3+3 H2
A.58.2 g Al2(SO4)3
B.523.5 g Al2(SO4)3
C.174.5 g Al2(SO4)3
D.5700 g Al2(SO4)3
Answers: 3
Chemistry, 22.06.2019 05:50, vanessa051266
In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst
Answers: 1
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) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. 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, 23.06.2019 00:30, coralaguilar1702
What is calcium oxide+diphosphorus pentoxide--> calcium phosphate balanced
Answers: 1
3
Question 1 (1 point)
If you have 50 grams of H2SO4 and excess Al, how many grams of Al2(SO4...
If you have 50 grams of H2SO4 and excess Al, how many grams of Al2(SO4...
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