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Chemistry, 21.06.2019 16:00, cathydaves
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Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
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Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy
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Chemistry, 22.06.2019 17:00, BREBRE8932
The biosphere of the earth is made up of what compound? organic or inorganic?
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A meteorological balloon contains 250.0 l he at 22°c and 740.0mmhg if the volume of the balloon can...
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