Worksheet of oxidataion and reduction in terms of gain or loss of oxygen
Oxidation and reduction
(We will use more advanced definitions in Year 10 and beyond). In each of the following reactions, decide whether the substance shown in bold is oxidised or reduced. 1 aluminium oxide → aluminium + oxygen
2 nickel + oxygen → nickel oxide
3 carbon + zinc oxide → carbon dioxide + zinc
4 iron oxide + hydrogen → iron + water
5 aluminium + chromium oxide → aluminium oxide + chromium
6 aluminium + oxygen → aluminium oxide
7 hydrogen + copper oxide → copper + water
8 calcium oxide → calcium + oxygen
9 tungsten oxide + hydrogen → tungsten + water
10 magnesium + iron oxide → magnesium oxide + iron
Now copy the equations into your notes with the following key.
Underline for oxidation
Box for reduction.
C1.18b Oxidation and reduction In each of the following reactions, decide whether the substance shown in bold is oxidised or reduced. 1 aluminium oxide → aluminium + oxygen
2 nickel + oxygen → nickel oxide
3 carbon + zinc oxide → carbon dioxide + zinc
4 iron oxide + hydrogen → iron + water
5 aluminium + chromium oxide → aluminium oxide + chromium
6 aluminium + oxygen → aluminium oxide
7 hydrogen + copper oxide → copper + water
8 calcium oxide → calcium + oxygen
9 tungsten oxide + hydrogen → tungsten + water
10 magnesium + iron oxide → magnesium oxide + iron
Now copy the equations into your notes with the following key.
Underline for oxidation
Box for reduction.
C1.18b Oxidation and reduction 1 aluminium oxide → aluminium + oxygen
The aluminium oxide has had oxygen removed and has therefore been
The nickel has gained oxygen and has therefore been
The zinc has had oxygen
The aluminium has