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When magnesium ribbon is burned in oxygen the reaction that takes place is: Mg + O2 → Mg²⁺ + O⁻ (i) Which element is reduced? (ii) Give a reason for your answer. - Leaving Cert Chemistry - Question d - 2019

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When-magnesium-ribbon-is-burned-in-oxygen-the-reaction-that-takes-place-is:--Mg-+-O2-→-Mg²⁺-+-O⁻--(i)-Which-element-is-reduced?--(ii)-Give-a-reason-for-your-answer.-Leaving Cert Chemistry-Question d-2019.png

When magnesium ribbon is burned in oxygen the reaction that takes place is: Mg + O2 → Mg²⁺ + O⁻ (i) Which element is reduced? (ii) Give a reason for your answer.

Worked Solution & Example Answer:When magnesium ribbon is burned in oxygen the reaction that takes place is: Mg + O2 → Mg²⁺ + O⁻ (i) Which element is reduced? (ii) Give a reason for your answer. - Leaving Cert Chemistry - Question d - 2019

Step 1

Which element is reduced?

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Answer

The element that is reduced in the reaction is oxygen (O₂).

Step 2

Give a reason for your answer.

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104 rated

Answer

Oxygen is reduced because it gains electrons during the reaction, resulting in it acquiring a negative charge as it forms the oxide ion (O⁻).

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