Question

Which of the following is an example of an element? a water b air c sugar d oxygen

Answer 1

d. Oxygen

Step-by-step explanation:

- Water is not an element but a compound made of hydrogen and oxygen elements

- Air is a compound made of gases such as oxygen, nitrogen, rare gases and carbondioxide...

- Sugar is an organic compound (sucrose) made of carbonyl carbons and hydrocarbons

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