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Joan writes four numbers on the board in standard form, and then she writes their scientific notation
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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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Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg
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The partial pressures in an equilibrium mixture of no, cl2, and noci at 500 k are as follows: pno =...
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