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
Chemistry, 22.06.2019 23:30, jade468
Substance a is a nonpolar liquid and has only dispersion forces among its constituent particles. substance b is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles. when substance a and b are combined, they spontaneously mix.
Answers: 1
Chemistry, 23.06.2019 03:30, damyonfenton13
If 2 molecules of one reactant combine with 3 molecules of another to produce 5 molecules of a product, then what is the representation of the reaction?
Answers: 1
Gas is $2.50/gal at station a and 85 cents/l at station b. a) convert the cost of gas at station b t...
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