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Chemistry, 23.06.2019 04:31
How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.
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Chemistry, 23.06.2019 19:30
There was a water with a boat and a rock in a boat. will the level of the water stay the same or higher or lower if u remove the rock from the boat and put it under water? ?
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Chemistry, 23.06.2019 23:20
How much heat transfer (in kj) is necessary to raise the temperature of a 0.250 kg piece of ice from −24.0°c to 128°c, including the energy needed for phase changes? (assume the substance remains at a constant volume throughout each stage of the heating process.)
Answers: 3
How does a multicellular organism develop?
the cells shrink.
one cell grows...
the cells shrink.
one cell grows...
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