InsolBasePrepFullAnim.gifmulti-word fill quiz 9Ewf4 on "Reactions of metals and metal compounds"

   added      bigger      chloride      clear      copper      crystals      dissolving      evaporate      filtered      gas      magnesium      mixture      nitric      oxide      oxides      salts      slowly      sulphate      sulphuric      water      zinc   
1a. Acids react with metal to form a salt and . There is no bubbling observed because no is formed. This reaction can be used to prepare .

1b. The black solid oxide is added to dilute sulphuric acid in order to prepare copper .

2. The is heated to speed up the process. More black powder is until no more dissolves.

3. The excess copper is off to leave a blue solution of the salt.

4. The filtered liquid is heated to the water and leave the salt . If the solution is left for a long time it crystallises to form crystals.

5. Complete the word equations:

(a) magnesium oxide + acid ==> nitrate + water

(b) iron oxide + hydrochloric acid ==> iron +

(c) oxide + acid ==> zinc sulphate + water