SALTS 



161 



The following table gives the common and chemical names of a number 

 of well-known substances. The student should consider how each could 

 be prepared. 



QUESTIONS ON CHAPTER XXVI. 



127. You are given two bottles containing solutions of hydrochloric acid 

 gas ; how would you ascertain which bottle contains the more strongly 

 acid liquid ? 



128. What are oxides ? In what important particulars do the soluble 

 metallic oxides differ from the non-metallic oxides ? How are salts formed ? 

 Give examples. 



129. Oxides of the metals in solution affect vegetable colours differently 

 from oxides of the non-metals. These different solutions when mixed in 

 certain proportions produce a substance affording no colour changes. What 

 names are given to these solutions and to the product of their interaction, 

 and why ? 



130. What exactly do you mean by an acid, an alkali? Why were 

 these bodies so named ? Give an example to show the effect of their inter- 

 action. 



131. Explain clearly what you understand by the term neutralisation 

 as applied to acids. What class of subetances do you obtain by means of 

 this process ? Give three examples. 



132. What do you understand by a salt ? 



You are given some dilute hydrochloric acid. State exactly how you 

 would determine the volume of this acid, which, when neutralised with 

 soda, will give one gram of common salt. 



J.G.S. L, 



