1. The problem statement, all variables and given/known data The balanced net ionic equation for precipitation of CaCO3 when aqueous solutions of Na2CO3 and CaCl2 are mixed is _____. 2. Relevant equations Not sure of any 3. The attempt at a solution I'm not sure how to get a "net ionic equation." I took chemistry 2 years ago and looking to take another course in it. Unfortunately I forgot a lot of chemistry so I'm looking to do some extra work to help me remember it. The product side would be 2NaCl + CaCO3, but how do I find the "net ionic equation" and not just an equation with reagents to product?