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Reactions of metals and metal compounds

Reactions of metals and metal compounds. W Richards The Weald School. Testing for hydrogen and salts. “POP”. 1) Testing for hydrogen:. 2) Testing for a salt:. Reactions of metals with acids. Cl. H. Cl. Mg. H. METAL + ACID SALT + HYDROGEN. Mg. H. Cl.

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Reactions of metals and metal compounds

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  1. Reactions of metals and metal compounds W Richards The Weald School

  2. Testing for hydrogen and salts “POP” 1) Testing for hydrogen: 2) Testing for a salt:

  3. Reactions of metals with acids Cl H Cl Mg H METAL + ACID SALT + HYDROGEN Mg H Cl e.g. magnesium + hydrochloric acid magnesium chloride + hydrogen H Cl • Copy and complete the following reactions: • Calcium + hydrochloric acid • Zinc + hydrochloric acid • Iron + hydrochloric acid • Lithium + sulphuric acid

  4. Testing for carbon dioxide Gas Limewater Limewater turns milky/cloudy

  5. Reactions of metals carbonates with acid METAL CARBONATE + ACID SALT + CARBON DIOXIDE + WATER Mg H Cl Cl Mg H H C C Cl H Cl O O O O O O • Copy and complete the following reactions: • Magnesium carbonate + hydrochloric acid • Calcium carbonate + hydrochloric acid • Sodium carbonate + sulphuric acid A metal carbonate is a compound containing a metal, carbon and oxygen.

  6. Reactions of metal oxides with acid Al Na Mg Na Al Magnesium oxide Sodium oxide Aluminium oxide METAL OXIDE + ACID SALT + WATER O O O O O O O H Cl Mg H H Mg Cl Cl Cl H • Copy and complete the following reactions: • Magnesium oxide + hydrochloric acid • Calcium oxide + hydrochloric acid • Sodium oxide + sulphuric acid A metal oxide is a compound containing a metal and oxide. They are sometimes called BASES. For example:

  7. Neutralisation reactions ACID + ALKALI SALT + WATER H Cl Na Na H H O O H Cl • Copy and complete the following reactions: • Sodium hydroxide + hydrochloric acid • Calcium hydroxide + hydrochloric acid • Sodium hydroxide + sulphuric acid • Magnesium hydroxide + sulphuric acid A neutralisation reaction occurs when an acid reacts with an alkali. An alkali is a metal oxide or metal hydroxide dissolved in water.

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