News from Mathnasium of Northside San Antonio. Pricing Change. I hope your students have had a great start to the school year. As the 1st six week grading period wraps up, you may be considering enrollment options at Mathnasium.
Lime water is a solution of calcium hydroxide (slaked lime). When carbon dioxide is bubbled through it, a solid precipitate of calcium carbonate is formed. Calcium carbonate is chalk or limestone, and it is this that makes the lime water cloudy. calcium hydroxide + carbon dioxide calcium carbonate + water.hen carbon dioxide is bubbled through it, a solid precipitate of calcium carbonate is formed. Calcium carbonate is chalk or limestone, and it is this that makes the lime water cloudy. calcium hydroxide + carbon dioxide calcium carbonate + water.
Calcium hydroxide is formed by one #Ca^(2+)# cation and two #OH^(-)# anions, which implies that its chemical formula will be #Ca(OH)_2#. Here's how you'd figure this out. If you look at the periodic table, you'll see that calcium is in group 2. That means that it has two valence electrons that it must give up in order to be stable.