MCQ Collection

Chemistry MCQs

Practice Chemistry questions with answers and explanations.

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Common Test Chemistry practice 28: Using the accompanying practice context, a reactant is added to a system at dynamic equilibrium. What does Le Châtelier’s principle predict?

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Common Test Chemistry practice 29: Using the accompanying practice context, which statement correctly describes oxidation?

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Common Test Chemistry practice 30: Using the accompanying practice context, what is the principal effect of a catalyst?

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Common Test Chemistry practice 16: Using the accompanying practice context, at which electrode does oxidation occur in an electrochemical cell?

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Common Test Chemistry practice 17: Using relative atomic mass 40, what is the mass of 3 mol of Ca atoms?

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Common Test Chemistry practice 18: Using the accompanying practice context, which bond forms when two non-metal atoms share electron pairs?

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Common Test Chemistry practice 19: What is [H⁺] for a solution of pH 6?

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Common Test Chemistry practice 20: Using the accompanying practice context, a reactant is added to a system at dynamic equilibrium. What does Le Châtelier’s principle predict?

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Common Test Chemistry practice 11: What is [H⁺] for a solution of pH 3?

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Common Test Chemistry practice 12: Using the accompanying practice context, a reactant is added to a system at dynamic equilibrium. What does Le Châtelier’s principle predict?

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japan-common-test-chemistry Chemistry JapanMedium

Common Test Chemistry practice 13: Using the accompanying practice context, which statement correctly describes oxidation?

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japan-common-test-chemistry Chemistry JapanMedium

Common Test Chemistry practice 14: Using the accompanying practice context, what is the principal effect of a catalyst?

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