Chemistry, 01.06.2021 17:40, justbepunky
What volume of 2 moldm-3 nitric acid will react with 10 g of calcium carbonate (Mr= 100)? The equation for the reaction is: CaCO3 (s) + 2HNO3 (aq) > Ca(NO3)2 (aq) + H2O (l) + CO2 (g)
Answers: 2
Chemistry, 22.06.2019 05:00, YoEsMyles3115
0.2348 grams of pbcl2 used to form 44.0 ml of solution.
Answers: 1
Chemistry, 22.06.2019 10:30, perezanthony2403
Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction
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, 22.06.2019 15:30, ricardotavarez6
How does a large body of water, such as the ocean, influence climate?
Answers: 1
What volume of 2 moldm-3 nitric acid will react with 10 g of calcium carbonate (Mr= 100)? The equati...
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