PLEASE HELP I WILL MARK BRAINLIEST BUT THIS IS DUE IN LIKE 20 MINUTES LOL
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Chemistry, 27.02.2021 05:50 anasstasiyashpa
PLEASE HELP I WILL MARK BRAINLIEST BUT THIS IS DUE IN LIKE 20 MINUTES LOL
Answers: 2
Chemistry, 22.06.2019 11:40
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, 22.06.2019 20:30
We are hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?
Answers: 3
Chemistry, 22.06.2019 22:00
Ill give u brainliest pls how is mass of carbon conserved during cellular respiration
Answers: 1
Chemistry, 23.06.2019 08:30
Imagine you are a business executive who wants to pursue an environment policy for your company that limits pollution and uses fewer raw materials but would cost more what might be the discussion to your next broad meeting how would you make your case to your shareholders
Answers: 1
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