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The following diagram illustrates the rate curve that was obtained when Mg react...


Question

The following diagram illustrates the rate curve that was obtained when Mg reacted with excess dilute HCl.

The diagram became horizontal at X because

Options

A) The reaction was slowed down

B) All the dilute HCl has reacted

C) All the Mg has reacted

D) Hydrogen gas is produced at a steady rate


The correct answer is C.

Explanation:

When the graph becomes horizontal, then one of the reactants has been used up. C is the correct answer since HCl is in excess, Mg is expected to finish before it.

Explanation provided by Fatoye Elijah


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  • Fatoye Elijah

    When the graph becomes horizontal, then one of the reactants has been used up. C is the correct answer since HCl is in excess, Mg is expected to finish before it.

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