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What is the volume occupied by 10.0 dm3 of gas at standard pressure after it has been compressedat constant temputure to 500.0 kpa?
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Express the following number in scientific notation. 0.026890 =
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Chemistry, 22.06.2019 12:00
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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Chemistry, 22.06.2019 14:00
What mass of natural gas (ch4) must you burn to emit 276 kj of heat?
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How does the arrangement of elements in periods relate to electron configuration...
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