Fill in the blanks in the equations and statements below.

Temporary hardness can be removed by boiling.

Ca(HCO₃)₂(aq)(s) + (l) + (g)

Temporary hardness can be removed by Clark's process (the addition of slaked ).

Ca(HCO₃)₂(aq) + (aq)(s) + (l)

Permanent (and ) hardness can be removed by the addition of washing .

Ca²⁺(aq) + CO₃^2-(aq)(s)

(and temporary) hardness can be removed by ion-.

resin-(Na)₂(s) + Ca²⁺(aq)resin-(s) + (aq)

Permanent (and temporary) hardness can be masked by the use of polyphosphate water softeners.

Ca(aq) + P₃O₁₀^5-(aq)CaP₃O₁₀(aq)