In this lesson we learned about precipitates, which are solids that are produced in a chemical reaction between two solutions. Sometimes The mixing of two ionic solutions results in the formation of a solid. The degree to which a compound dissolves in water is called it's solubility and precipitation is not limited to solids.
In this chart S means soluble (liquid), N means not soluble (solid)
Lesson 24
This lesson was all about molar ratios. A mole ratio is a ratio given by the coefficients in a balanced equation, showing how many units of each substance must combine to make the maximum amount of product. Now when these reactants aren't combined in their perfect mole ratio, one reactant runs out (called the limiting reactant) and one is left over, which is called the excess reactant. When you compare things in a balanced equation you must look at the moles.
Practice Problem
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