Solve Study Textbooks Guides. The drying agent used in drying hydrogen chloride gas is conc. Ncert Solutions For Class 10 Science Chapter 1 Chemical Reactions Equations Chemical Reactions Science Textbook Science Give equations to show what happens when temporary hard water is. . Ii Sulphates and chlorides of magnesium and calcium make water permanently hard. Once we know how many moles of AgBr dissolve in a liter of water we can calculate the solubility in grams per liter. Rusting of iron is the process when iron combines with water and oxygen to generate hydrated ironIII oxide. Ag Br- 71 x 10-7 M. I Hydrogen carbonates of calcium and magnesium turn water temporarily hard. The solubility of AgBr in water is only 000013 gram per liter. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride. If there is any moisture in the air anhydrous calcium chloride will a