Chemistry, 30.12.2019 22:31 natlovesfood
Many scientists contributed to the current model of atoms. which of the following offers a hypothesis on how people’s backgrounds and interests influence their work?
a person with more activities and interest is more creative and intelligent.
a person’s background and interests can give him a unique perspective in his research.
if a person has an outside influence on his work, it is more credible to the general public.
a person’s involvement in arts and literature will them notice more details in their research.
Answers: 3
Chemistry, 22.06.2019 17:20
Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.
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Chemistry, 23.06.2019 00:30
How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6
Answers: 1
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)
Answers: 3
Many scientists contributed to the current model of atoms. which of the following offers a hypothesi...
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