Chemistry, 24.03.2021 17:00 Roselyn0131
Two balloons of the same volume are filled with helium. The kinetic energy of
the helium molecules in Balloon 1 is higher than the kinetic energy of the
helium molecules in Balloon 2. What can you conclude about these balloons?
A. Balloon 1 has more helium in it than balloon 2.
B. The balloons have two different kinds of helium.
C. The temperature is lower in the Balloon 1.
D. The temperature is lower in Balloon 2.
Answers: 1
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Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?
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The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?
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The kw for water at 0 °c is 0.12× 10–14 m2. calculate the ph of a neutral aqueous solution at 0 °c.
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Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).
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Two balloons of the same volume are filled with helium. The kinetic energy of
the helium molecules...
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