Which of the following statements describes electromagnetism?
A. Magnets can do work, and electricity also does work.
B. Electricity and magnetism are both flows of electrons.
O C. Magnetism and electricity are actually the same thing.
D. Magnetism can create electricity, and electricity can create
magnetism
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What are the trends and exceptions to the trends in electron affinity?
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In a laboratory determination of the atomic weight of tin, a sample of tin is weighed in a crucible. nitric acid is added, and the reaction proceeds to give a hydrated tin(iv)oxide plus no2and h2o. the hydrated tin(iv)oxide is then heated strongly and reacts as follows: sno2.xh2o(s)ï‚®sno2(s)+ xh2o(g)the sno2is finally cooled and weighed in the crucible. explain the effect on the calculated atomic weight of tin that would result from each of the following experimental errors: (a)considerable spattering occurs when the nitric acid is added to the tin.(b)the hydrated tin(iv)oxide is not heated sufficiently to change it completely to tin oxide.
Answers: 2
Which of the following statements describes electromagnetism?
A. Magnets can do work, and electric...
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