Correct Answer: Option C

Explanation

The mass of magnesium ribbon increases when heated in air because it combines with oxygen to form magnesium oxide, a white powder: 

The chemical equation for this reaction is:

2Mg + O2 → 2MgO

• professor John is the leader of the ________ committee to review the new book? Answer this

  1 Answers   ·   English Language   ·   3 months ago
• His contract was ---- because of irregularities in his contract You picked annulled over terminated and I want to know... Answer this

  1 Answers   ·   English Language   ·   2 months ago
• whats is the difference between phrase and clause? Answer this

  2 Answers   ·   English Language   ·   3 days ago