Balance chemical equation Calcium hydroxide + carbon dioxide = calcium carbonate + water

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Modern weaponry has increased the number of deaths in wars and violent conflicts.

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m