Answers Chemistry Writing and Balancing Chemical Equations — QuizQuestion 2

2

QuizMultiple Choice

Writing and Balancing Chemical Equations — Quiz

Question 2 • Chemistry

Which formula equation represents the burning of sulfur to produce sulfur dioxide?

Answer

A

cap s times s plus cap o sub 2 g triangle set over right arrow SO sub 2 g

B

4 Fe sub 2 cap s sub 2 plus 11 cap o sub 2 rightarrow 2 Fe sub 2 cap o sub 3 plus 8 SO sub 2

C

2 SO sub 2 g plus cap o sub 2 g cap v sub 2 cap o sub 5 set over right arrow 2 SO sub 3 g

D

2 cap h sub 2 cap s s plus 3 cap o sub 2 g rightarrow 2 cap h sub 2 cap o l plus 2 SO sub 2 g

Explanation

Burning sulfur means elemental sulfur reacts with oxygen to form sulfur dioxide. The equation S(s) + O₂(g) → SO₂(g) is balanced: one sulfur atom and two oxygen atoms appear on each side. Choice A represents this reaction.

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