5 points
Elon Musk is trying to figure out how much oxygen he needs to get to
Mars. He has al...
Chemistry, 02.06.2021 01:00 papasully1
5 points
Elon Musk is trying to figure out how much oxygen he needs to get to
Mars. He has already used the standard heats of formation to calculate
how much heat energy the combustion of kerosene will produce. He then
figured out how many moles of kerosene he needs to produce the amount
of heat energy required to get to Mars. How can he figure out how many
grams or liters of oxygen he needs? Use the following terms: LAW OF
CONSERVATION OF MASS, BALANCED CHEMICAL REACTION.
STOICHIOMETRY, MOLE-TO-MOLE RATIO
Answers: 2
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Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h
Answers: 1
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Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore
Answers: 2
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For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate,m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2
Answers: 3
Chemistry, 22.06.2019 12:30
Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together
Answers: 1
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