Subject Test Chemistry

Question 4 of 17

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Each of the questions or incomplete statements below is followed by five suggested answers or completions. Select the one that is best in each case.

$...SO_{2} (g) + ... O_{2} (g) \to ...SO_{3} (g)$

According to the reaction represented by the unbalanced equation above, how many moles of $SO_{2} (g)$ are required to react completely with $1$ mole of $O_{2} (g)$ ?

Select an Answer

$0.5$ mol

Correct Answer:

No

$1$ mol

Correct Answer:

No

$2$ mol

Correct Answer:

Yes

$3$ mol

Correct Answer:

No

$4$ mol

Correct Answer:

No

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This question tests your ability to balance chemical equations. The stoichiometry of the correctly balanced equation indicates that $2$ moles of $SO_{2} (g)$ are needed to react completely with $1$ mole of $O_{2} (g)$ to form $2$ moles of $SO_{3}$ .

Question Difficulty:

easy

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Subject Test Chemistry

Question 4 of 17

Learn more about plans to discontinue SAT Subject Tests

Select an Answer

View Correct Answer