:answer question number 1
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Chemistry, 22.06.2019 01:50
7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '
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Stage in which a typical star has completely stopped fusion
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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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