When metals react with oxygen, metal oxides are formed. The speed of the reaction depends on the reactivity of the metal. Watch this video for a practical demonstration of reacting metals with oyxgen.
Earth once had next to no oxygen on it (Picture: Getty Images/Katie Ingham) ‘What oxygen is to the lungs, such is the hope to the meaning of life.’ This is what Emil Brunner, a Swiss theologian, once ...
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