Chemistry, 26.02.2021 22:20 NeverEndingCycle
Baking soda (NaHCO3) and vinegar (HC, H,0) react to form sodium acetate, water, and carbon
dioxide. If 42.00 g of baking soda react, how many moles of carbon dioxide will form? Show
your work.
NaHCO3 + HC_H,02 - CH, COOH + H2O + CO, I
Answers: 1
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, 23.06.2019 01:00
Which description best characterization the motion of particles in a solid
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Chemistry, 23.06.2019 02:30
Calculate the ph at the equivalence point for the titration of a solution containing 150.0 mg of ethylamine (c2h5nh2) with 0.1000 m hcl solution. the volume of the solution at the equivalence point is 250.0 ml. kb forethylamine is 4.7 × 10−4 .
Answers: 2
Chemistry, 23.06.2019 03:30
Select the correct lewis structure for fluorine which is group 7a element?
Answers: 1
Baking soda (NaHCO3) and vinegar (HC, H,0) react to form sodium acetate, water, and carbon
dioxide....
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