What is the concentration of nitrate ions in a solution obtained by mixing 300. mL of 0.210 M potassium nitrate(aq) with 300. mL of 0.150 M zinc nitrate(aq).

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)

Draw the lewis dot structure for each of the following polyatomic ions

How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.