Not tested Conduction of electricity in solution in water for those that are water soluble Very soft Hardness Substance H Purple crystalline solid Description Turns to gas on heating at a low temperature Effect of heat Does not dissolve in water to any appreciable Solubility in water extent Soluble in cyclohexane to give purple solution Solubility in other solvent – cyclohexane Does not conduct electricity Conduction of electricity as solid Not tested Conduction of electricity in solution in water for those that are water soluble Very brittle Hardness Substance I White crystalline solid Description Impossible to melt in a Bunsen flame Effect of heat Does not dissolve in water Solubility in water Does not dissolve in cyclohexane Solubility in other solvent – cyclohexane Does not conduct electricity Conduction of electricity as solid Not tested Conduction of electricity in solution in water for those that are water soluble Very hard Hardness Substance J Yellow crystalline solid Description Low melting temperature Effect of heat Does not dissolve in water Solubility in water Dissolves in cyclohexane Solubility in other solvent – cyclohexane
Conduction of electricity in solution in water for those that are water soluble Not tested Hardness Very soft Substance H Description Purple crystalline solid Effect of heat Turns to gas on heating at a low temperature Solubility in water Does not dissolve in water to any appreciable extent Solubility in other solvent – cyclohexane Soluble in cyclohexane to give purple solution Conduction of electricity as solid Does not conduct electricity Conduction of electricity in solution in water for those that are water soluble Not tested Hardness Very brittle Substance I Description White crystalline solid Effect of heat Impossible to melt in a Bunsen flame Solubility in water Does not dissolve in water Solubility in other solvent – cyclohexane Does not dissolve in cyclohexane Conduction of electricity as solid Does not conduct electricity Conduction of electricity in solution in water for those that are water soluble Not tested Hardness Very hard Substance J Description Yellow crystalline solid Effect of heat Low melting temperature Solubility in water Does not dissolve in water Solubility in other solvent – cyclohexane Dissolves in cyclohexane
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