Chemistry, 25.10.2019 01:43 parkermacyow71bm
Consider the following reaction. cr2o3(s) + 3ccl4(l) 2crcl3(s) + 3cocl2(g). when the green solid is mixed with the colorless liquid, the mixture starts to bubble and fume. when all action has stopped, a dry purple solid containing solid green specks remains. which substance is the limiting reactant? a) cr2o3b) ccl4c) crcl3d) cocl2e) there is no limiting reactant
Answers: 2
Chemistry, 23.06.2019 00:50, lakhanir2013
The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as
Answers: 3
Chemistry, 23.06.2019 08:00, 91miketaylor
Why is it important for scientists to review and repeat the work of other scientists? 1.a scientific theory must be tested three times before it is proven. 2.the scientific method only applies to repeated experiments. 3.an experiment may have had errors that the scientists didn't recognize. 4.the results of individual scientists may be influenced by bias. 5.an experiment must be performed twice before the data can be analyzed.
Answers: 3
Chemistry, 23.06.2019 08:50, leah5981
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)
Answers: 3
Consider the following reaction. cr2o3(s) + 3ccl4(l) 2crcl3(s) + 3cocl2(g). when the green solid is...
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