Two electrodes, one positive and one negative, are placed in some molten sodium chloride, and a current passes through. Describe how the sodium and chloride ions react.
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Card 7
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Sodium sulfate is and ionic compound. Write the formulae of the two ions in sodium sulfate (Na2SO4).
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Card 8
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Calculate the relative formula mass for sodium sulfate. (Relative atomic masses (Ar): Na= 23, O= 16, S= 32