What happens in a voltaic cell?
A. chemical energy is changed to a electrical energy
B. elect...
Chemistry, 13.04.2021 19:40 LilLappyLOL
What happens in a voltaic cell?
A. chemical energy is changed to a electrical energy
B. electrical energy is changed to chemical energy
C. electrical energy is changed to magnetic energy
D. magnetic energy is changes to electrical energy
Answers: 1
Chemistry, 22.06.2019 14:10
Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.
Answers: 2
Chemistry, 23.06.2019 07:30
Assume that 13.5 g solid aluminum (al) react with hcl to produce solid aluminum chloride (alcl3) salt and gaseous hydrogen (h2) at standard temperature and pressure.
Answers: 1
Chemistry, 23.06.2019 13:30
Which factors would have influenced earth’s climate during the time of pangea? check all that apply. land covered by glaciers one large landmass one large ocean tectonic activity multiple small seas
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
Health, 01.12.2020 01:40
Mathematics, 01.12.2020 01:40
Mathematics, 01.12.2020 01:40
Mathematics, 01.12.2020 01:40
History, 01.12.2020 01:40
Mathematics, 01.12.2020 01:40
English, 01.12.2020 01:40
Mathematics, 01.12.2020 01:40
Mathematics, 01.12.2020 01:40