Answers: 2
Chemistry, 23.06.2019 13:30
The zinc within a copper-plated penny dissolves in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can reach the zinc). the reaction between the acid and the zinc 2h+(aq)+zn(s)→h2(g)+zn2+(aq) . when the zinc in a certain penny dissolves, the total volume of gas collected over water at 25 °c is 0.947 l at a total pressure of 743 mmhg . (vapor pressure of water is 23.78 mmhg at 25 °c .) what mass of hydrogen gas is collected? answer in appropriate significant figures
Answers: 3
Chemistry, 23.06.2019 17:00
During which of the following phases of the moon do we see the left half of the moon as lit? full moon first quarter moon gibbous moon third quarter moon any is greatly : )
Answers: 1
Chemistry, 23.06.2019 18:20
Consider the following system at equilibrium. caco3(s) = ca2+(aq) + co32-(aq) the addition of which compound will cause a shift in equilibrium because of a common ion effect? occia co2 cuso4 na2co3
Answers: 3
Chemistry, 24.06.2019 01:50
Selective reactions allow for synthetic control of chemical reactions. different orderings of selective reactions can yield different products. the following three-step reaction takes advantage of selective reactions. give the product that is produced after each of the three steps.
Answers: 1
Reacción del ácido ascorbico?...
Geography, 16.07.2021 15:20
Chemistry, 16.07.2021 15:30
Mathematics, 16.07.2021 15:30
Mathematics, 16.07.2021 15:30
Health, 16.07.2021 15:30
Mathematics, 16.07.2021 15:30