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12 cards from this deck
Water with high dissolved Ca2+\text{Ca}^{2+}Ca2+ and Mg2+\text{Mg}^{2+}Mg2+ ions
Scum (greyish, insoluble precipitate)
Temporary and permanent
Ca(HCO3)2\text{Ca(HCO}_3)_2Ca(HCO3)2 and Mg(HCO3)2\text{Mg(HCO}_3)_2Mg(HCO3)2
Boiling
CaSO4\text{CaSO}_4CaSO4 or MgSO4\text{MgSO}_4MgSO4
No
Ion exchange resin
Calcium carbonate (CaCO3\text{CaCO}_3CaCO3)
Fizzes, releases CO2\text{CO}_2CO2
All ions from water
Distilled water
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