Question

give right answer
don't write irrelevant answer
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Answer 1

Answer:

magnesium ribbon is rubbed before burning because it has a coating of basic magnesium carbonate. if it helped pls give me brainlist

Answer 2

Answer:

basic magnesium carbonate is the correct answer

Explanation:

This is because the pure magnesium ribbon when reacts with air forms basic magnesium carbonate which is to be cleaned before the reaction with sand paper.