19,879
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Changes
→Key Stage 3
| style="height:20px; width:200px; text-align:center;" |'''CO<sub>2</sub>'''
| style="height:20px; width:200px; text-align:center;" |'''CH<sub>4</sub>'''
| style="height:20px; width:200px; text-align:center;" |'''CHC<sub>2</sub>H<sub>5</sub>OH'''
|-
|[[File:WaterMolecule.png|center|200px]]