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90#cm^3# of 0.01M calcium hydroxide were added to a sample of water containing 0.001 moles of calcium hydrogen carbonate.
(a) Write an equation for the reaction which took place
(b) Calculate the number of moles of calcium ions in 90#cm^3# of 0.01M calcium hydroxide.
(c) What would be observed if soap solution was added dropwise to a sample of the water after the addition of the calcium hydroxide? Give a reason.