Chemistry, 27.02.2021 03:30 mikewalton566
This is the AK steel plant near us. Which fossil fuel is used to melt and refine the iron into steel?
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Does the energy in a solid increase or decrease when changing to a liquid?
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Based on its chemical properties, identify the position of each chemical family on the periodic table.
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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 17:30
In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j
Answers: 2
This is the AK steel plant near us. Which fossil fuel is used to melt and refine the iron into steel...
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