InsolBasePrepFullAnim.gifmulti-word fill quiz 9Ewf4 on "Reactions of metals and metal compounds" (a doc brown worksheet for QCA KS3 science-chemistry)

Site Meter* Do online OR printout, do, return to check answers. * KS3 Science Index * EMAIL comment?query * Doc Brown's Chemistry updated June 11th 2009 *

   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