Chemistry, 12.08.2020 07:01, megankbrown5
Urgent please help:
Which statement best describes evidence that a chemical reaction occurred in the investigation conducted by Miss Parker's class?
A: The mass of the vinegar and baking soda increased
B: the mass of the vinegar and baking soda decreased
C: the baking soda mixed with a vinegar and release a gas
D:the baking soda mix with the vinegar and absorbed heat energy
Answers: 1
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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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The image shows the process of which is used in nuclear power plants. photo attached
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Urgent please help:
Which statement best describes evidence that a chemical reaction occurred in th...
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