The table shows some of the properties of three different substances, X, Y and Z. Complete the last column by stating whether each substance is a metal, a non-metal or a compound. substance melting point X: 113 °C Y: 962 °C Z: -182 °C. electrical conductivity X: very poor, Y: very good, Z: very poor. solubility in water X: insoluble Y: insoluble Z: insoluble effect of heating in air X: burns to form one product which is an acidic gas Y: loses shiny surface Z: burns to form two new substances
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