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Compare and contrast physical changes with chemical changes.
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Which of the following are correct values for the ideal gas laws constant r
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Using the periodic table, complete the following. element: hydrogen symbol: hâ‚‚ molecular weight: g mass of one mole: g/mol
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What mass of iron must be in a hot pack to provide -335kj of heat when the iron reacts with oxygen and is converted to iron (111) oxide according to the following thermochemical equation? 2fe(s) + 1.5o2(g)—> fe2o3(s) delta h= -824.2kj/mol
Answers: 1
In a molecule of two electron dot structures describe the bond equally well?...
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