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Which of the following compounds has the largest percent by mass of oxygen?
Select o...
Chemistry, 04.12.2020 07:20 christylivingsowzxa2
HELP. ME
Which of the following compounds has the largest percent by mass of oxygen?
Select one:
a. CO2
b. C6H1206
с. СO
d. CH20
Answers: 2
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The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?
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Hot air balloons float in the air because of the difference in density between cold and hot air. in this problem, you will estimate the minimum temperature the gas inside the balloon needs to be, for it to take off. to do this, use the following variables and make these assumptions: the combined weight of the pilot basket together with that of the balloon fabric and other equipment is w. the volume of the hot air inside the balloon when it is inflated is v. the absolute temperature of the hot air at the bottom of the balloon is th (where th> tc). the absolute temperature of the cold air outside the balloon is tc and its density is ďc. the balloon is open at the bottom, so that the pressure inside and outside the balloon is the same. as always, treat air as an ideal gas. use g for the magnitude of the acceleration due to gravity.
Answers: 1
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Answers: 1
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Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?
Answers: 3
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