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Chemistry, 22.06.2019 03:50, AysiaRamosLee
What is the temperature of one mole of helium gas at stp?
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Chemistry, 22.06.2019 12:00, sophiaa23
Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
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What causes the plates to move? What layer of the Earth makes up these plates and what layer are the...
Mathematics, 23.07.2019 05:00
Mathematics, 23.07.2019 05:00