Post Utme Uniben 2018 Chemistry Question 20
Practice objective / multiple choice question 20 from the 2018 Post Utme Uniben Chemistry examination.
A 50.0 g sample of a metal oxide is heated in a crucible until it decomposes into its constituent elements. If the mass of the metal is 30.0 g, what is the mass of the oxygen in the sample?
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About This Question
This is Post Utme Uniben 2018 Chemistry Question 20. It is one of the objective questions from the 2018 Post Utme Uniben Chemistry examination.
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