7.2 Evidence of a Chemical Reaction
7.2 Evidence of a Chemical Reaction
7.2 Evidence of a Chemical Reaction
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Solubility: Mostly Insoluble<br />
• For example:<br />
• The solubility rules state that, with some exceptions,<br />
compounds containing the CO 3 2− ion are insoluble.<br />
• Compounds such as CaCO 3, FeCO 3, SrCO 3, and CuCO 3<br />
do not dissolve in water.<br />
• Note that the solubility rules contain many exceptions.<br />
• For example, compounds containing CO 3 2− are soluble<br />
when paired with Li + , Na + , K + or NH 4 + .<br />
• Thus Li 2CO 3, Na 2CO 3, K 2CO 3, and (NH 4) 2CO 3 are soluble.
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