2. Write the equation for the reaction between calcium carbide and water.
3. For what is calcium chlorate used?
4. Could limestone be completely decomposed if heated in a closed vessel?
5. Caves often occur in limestone. Account for their formation.
6. What is the significance of the term fluorspar? (Consult dictionary.)
7. Could calcium chloride be used in place of barium chloride in testing for sulphates?
8. What weight of water is necessary to slake the lime obtained from 1 ton of pure calcium carbonate?
9. What weight of gypsum is necessary in the preparation of 1 ton of plaster of Paris?
10. Write equations to represent the reactions involved in the preparation of strontium hydroxide and strontium nitrate from strontianite.
11. Write equations to represent the reactions involved in the preparation of barium chloride from heavy spar.