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Write a balanced equation for the reaction that occurs when hydrogen gas reacts with chlorine gas producing hydrogen chloride. - Leaving Cert Chemistry - Question 4(d) - 2018

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Question 4(d)

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Write a balanced equation for the reaction that occurs when hydrogen gas reacts with chlorine gas producing hydrogen chloride.

Worked Solution & Example Answer:Write a balanced equation for the reaction that occurs when hydrogen gas reacts with chlorine gas producing hydrogen chloride. - Leaving Cert Chemistry - Question 4(d) - 2018

Step 1

Write the unbalanced equation

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Answer

The unbalanced equation for the reaction of hydrogen gas with chlorine gas is:

H2+Cl2→HCl\text{H}_2 + \text{Cl}_2 \rightarrow \text{HCl}

Step 2

Balance the equation

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Answer

To balance the equation, we see that one molecule of chlorine gas produces two molecules of hydrogen chloride. The balanced equation is:

H2+Cl2→2HCl\text{H}_2 + \text{Cl}_2 \rightarrow 2 \text{HCl}

Step 3

Final balanced equation

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Answer

Thus, the final balanced equation for the reaction is:

H2+Cl2→2HCl\text{H}_2 + \text{Cl}_2 \rightarrow 2 \text{HCl}

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