Chemical answers, Chemistry

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1. Enter the symbol of a sodium ion, Na+, followed by the formula of a sulfate ion, SO42- ..Express your answers as ions separated by a comma.

2.Enter the expression 147N+a, where a is the lowercase Greek letter alpha. lowercase Greek letter alpha.
Express your answer as a chemical expression.

3.Enter the chemical equation 2H+(aq)+S2-(aq)?H2S(g)

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