For each of the following, say whether the substance is ionic or molecular.
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potassium nitrate (\(\text{KNO}_{3}\))
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ethanol (\(\text{C}_{2}\text{H}_{5}\text{OH}\))
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sucrose (a type of sugar) (\(\text{C}_{12}\text{H}_{22}\text{O}_{11}\))
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sodium bromide (\(\text{NaBr}\))