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Why sorting of material is important for us name any two basic on which material are grouped
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Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid
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What does it mean for something to be dissolved in watera- it is submerged in water moleculesb-it is stirred in the water moleculesc- it is surrounded by water molecules d-it has water molecules added to it
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Chemistry, 23.06.2019 08:50
Reacting masses1 calcium carbonate breaks down on heating to produce calcium oxide and carbondioxide gas.caco3 + cao + co2a student heats 15 g of calcium carbonate strongly in a crucible.relative atomic masses (a): ca = 40, c = 12, o = 16.calculate the mass of calcium oxide produced by this reaction.(5 marks)
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Chemistry, 23.06.2019 09:30
What is the best describtion of the side of the moon that faces earth?
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Why sorting of material is important for us name any two basic on which material are grouped...
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