Answers: 2
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.
Answers: 2
If carbon has the electron configuration of (2,4) what would the electron configuration of the eleme...
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Mathematics, 22.04.2020 21:34
Mathematics, 22.04.2020 21:34