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A student received a sample of an unknown substance weighing 5 grams. After performing a series of measurements, they found that the sample contained 2.5 grams of pure calcium carbonate and an unknown amount of impurities. Using mass balance calculations, determine the weight and composition of the impurities in the sample.
answered
Jan 22
in
Analytical Chemistry
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votes
13
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Who created the broaden-and-build theory?
answered
Jan 17
in
Psychology
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7
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According to the social learning theory, how do children learn aggressive behaviour?
answered
Jan 15
in
Psychology
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votes
38
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What is the observer-expectancy effect?
answered
Jan 15
in
Psychology
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votes
16
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What is top-down processing in psychology?
answered
Jan 15
in
Psychology
0
votes
24
views
What is the post-conventional stage of moral development?
answered
Jan 14
in
Psychology
0
votes
23
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Which is the best way to maintain a strong, fit body?
answered
Jan 8
in
Science
0
votes
31
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What are the two classifications of natural resources?
answered
Jan 6
in
Science
0
votes
21
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Molecules in the gas phase can collide with the liquid surface and reenter the liquid via what?
answered
Dec 31, 2024
in
Science
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votes
9
views
At a convergent plate boundary, when one plate is oceanic, there are large what?
answered
Dec 30, 2024
in
Science
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