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10 Cards in this Set
- Front
- Back
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When metals are burned in the air, they react with Oxygen to form the metal Oxide .
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Sodium + Oxygen - Sodium Oxide
Magnesium + Oxide - Magnesium Oxide Copper + Oxygen - Copper Oxide |
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When metals react with water, Hydrogen Gas is produced and the metal forms a metal Hydroxide .
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Calcium, Lithium, Sodium and Potassium react readily with Cold water. Magnesium reacts very slowly with Cold water, but more vigorously with Steam .
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Reactions of metal with water
Calcium, sinks bubbles vigorously lithium, fizzes floats and moves on the surface Sodium, Fizzes floats and moves on the surface forms a molten ball. Potassium, fizzes, floats moves on the surface forms a molten ball the gas ignites burns with a lilac flame. Other metals such as rubidium and Caescium are more reactive. |
Calcium + Water - Calcium Hydroxide + Hydrogen
Lithium + Water - Lithium Hydroxide + Hydrogen Sodium + Water - Sodium Hydroxide + Hydrogen Potassium + Water - Potassium Hydroxide + Hydrogen |
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Testing for Hydrogen
A lit splint added the hydrogen burns with a characteristic squeaky pop . |
Testing for the metal Hydroxide
Universal indicator i added the indicator turns purple |
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The Reactions of metals with acid
when metals react with acid they produce a metal salt and hydrogen. When Hydrochloric acid is used the compound formed is the metal Chloride. |
The Reactions of metal and steam
magnesium does not react very quickly with cold water but the reaction is more vigorously when reacted with steam. Magnesium + Steam - Magnesium Oxide + Hydrogen |
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Magnesium reacts with cold water to produce magnesium hydroxide and reacts with steam to produce magnesium oxide.
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Calcium + Hydrochloric acid - calcium chloride + hydrogen
Magnesium + hydrochloric acid - magnesium chloride + hydrogen Zinc + Hydrochloric acid - Zinc Chloride + Hydrogen Copper + Hydrochloric acid - no reaction Copper does not react with acid because it is too low in the reactive series. |
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Competition Reactions
A more reactive metal will displace a less reactive metal from a compound. |
Magnesium + copper oxide - Magnesium oxide + Copper
Aluminium + iron oxide - Aluminium oxide + iron Known as thermic reaction |
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Redox
If a metal gains oxygen then it is oxidized if a metal loses oxygen then it is reduced. Magnesium + copper oxide - magnesium oxide + copper Magnesium has gained oxygen and so it has been oxidized. Copper has lost oxygen so it has been reduced. |
Displacement reactions
A more reactive metal will displace a less reactive metal from its salt. Magnesium + zinc sulphate - magnesium sulphate + zinc magnesium + copper sulphate - magnesium sulphate + copper copper + zinc sulphate - no reaction The metal which wins the sulphate is displaced. The metal which loses the sulphate is reduced. |
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Carbon
although carbon is a non metal it can displace some metals from their compounds. carbon + copper oxide - carbon dioxide + copper carbon + lead oxide - carbon dioxide + lead |
carbon has gained oxygen so it has been oxidized both copper and lead have lost oxygen. so they have been reduced
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Aluminium
Aluminium is a reactive metal but does not react as you would expect. This is because aluminium has a thin coating of aluminium oxide surrounding the metal. |
the oxide layer protects the aluminium from the other substances and prevents it from reacting.
temperature if one is higher in the reactive series and the other is lower then there will be a bigger temperature. |
