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The Reactivity Series
The Reaction of Metals with Water.
sodium, lithium and calcium
react with cold
see alkali metals and alkaline earth metals.
Metals in the reactivity series from magnesium to iron
react with steam - H2O(g) but not water - H2O(l).
The reaction forms the metal oxide and hydrogen gas.
You must know the test for hydrogen gas.
steam magnesium oxide + hydrogen.
Mg(s) + H2O(g) MgO(s) + H2(g)
aluminium + steam
aluminium oxide +
2Al(s) + 3H2O(g) Al2O3(s) + 3H2(g)
zinc + steam zinc
Zn(s) + H2O(g) ZnO(s) + H2(g)
oxide + hydrogen.
2Fe(s) + 3H2O(g) Fe2O3(s) + 3H2(g)
Note that the reaction between iron and steam is reversible.
lead, copper, silver,
gold and platinum
do not react with water or steam.
Links The Reactivity Series Revision Questions
gcsescience.com The Periodic Table Index Reactivity Series Quiz gcsescience.com
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