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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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How many atoms of each element are in the chemical formula p205
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Chemistry, 23.06.2019 23:30
An electron moves at 0.100c as shown in fig. e28.3. find the magnitude and direction of the magnetic field this electron produces at the following points, each 2.00 mm from the electron: (a) points a and b; (b) point c; (c) point d.
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