When barium fluoride reacts with sulfuric acid, barium sulfate and hydrofluoric acid are produced. What is the balanced equation for this reaction

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.

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

In order to complete this lab. you will need to be familiar with some common chemistry terms. complete the chemical change puzzle and list the relevant terms and their meaning below a. rectant b. product c. supernate