Two reactants in a flask at room temperature are producing bubbles of – McqOptions

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1.	Two reactants in a flask at room temperature are producing bubbles of a gas that turn limewater milky. The reactants could be ________.
A.	Zinc and hydrochloric acid
B.	Magnesium carbonate and hydrochloric acid
C.	Methane and oxygen
D.	Copper and dilute hydrochloric acid
Answer» C. Methane and oxygen

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