Multi-word fill quiz Q2 "Reactions of metals and their compounds" © Doc Brown's KS3 chemistry

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   chloride      colour      copper      dissolves      faster      first      gas      hydrochloric      hydrogen      iron      magnesium      nitrate      nitric      pop      reactive      rise      salt      second      slowing      soluble      sulfate      zinc   
1. If a metal reacts with an acid bubbles are seen as a colourless forms.
2a. Usually the metal to form a solution.
2b. Other signs of a chemical change may include a change and a temperature .
3. The gas gives a squeaky with a lit splint, and so is .
4. The part of the name of the salt formed is the metal added to the acid.
5. The part of the name depends on the acid used. Hydrochloric acid makes a salt, acid makes a nitrate salt, and sulfuric acid makes a salt.
6. The metals are NOT equally and form an 'activity series'. For example, reacts than iron, and one of the least reactive is .
7. Calcium, quite a reactive metal, is slow reacting in sulfuric acid because calcium sulfate isn't very . When it forms it coats the calcium metal the reaction down.
8. Complete the word equations:
(a) + nitric acid ==> magnesium + hydrogen
(b) + sulfuric acid ==> iron sulfate +
(c) zinc + acid ==> chloride + hydrogen