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Chemistry, 22.06.2019 06:00
One does not belong why? ice, gold ,wood ,diamond and table salt
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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 17:40
Areaction in which products can react to re-form reactants is
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Why do you think the periodic table continues to expand?...
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