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Chemistry, 22.06.2019 09:00
Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?
Answers: 1
Chemistry, 22.06.2019 18:00
How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.
Answers: 3
Chemistry, 23.06.2019 09:40
Write balanced nuclear equations for the formation of five elements whose atomic number is between helium (2) and iron (26):
Answers: 1
What is the value for (2+3)(4)...
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