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The sulfide ion, S2-, is isoelectronic with which one of the following
Trade Surplus
A situation where the value of a country's exports exceeds the value of its imports over a given period.
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Physical items that satisfy human wants or needs, which can be transferred from one person to another and include both consumer and capital goods.
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Intangible products provided to consumers, such as healthcare, education, and financial advising, which do not result in the ownership of anything physical.
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