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Chemistry, 22.06.2019 23:10
Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol
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Chemistry, 23.06.2019 06:40
4786 joules of heat are transferred to a 89.0 gramsample of an unknown material, with an initialtemperature of 23.0°c. what is the specific heat of thematerialif the final temperature is 89.5 °c?
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Chemistry, 23.06.2019 13:30
How many ammonium ions and how many sulfate ions are present in a 0.270 mol sample of ?
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How many grams are in 160 pounds?...
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