In this lab we learned about the writing and naming of chemical formulas. Chemical formulas are the expressions that indicate the number and type of atoms present in the smallest representative unit of a substance. Chemical formulas are written by determining the charges of both the cation and anion, then combining them in a way that produces a neutral compound. When naming chemical formulas we had to first write the name of the chemical then the second, adding -ide to the end of the second chemical, unless it was already a polyatomic ion. The polyatomic ion is placed into parenthesis to show that it is one unit. In this lab we also had to observe the precipitates of chemical solutions, such as silver mixed with chlorine. Several chemicals
