4
lesson pretestMultiple Choice

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Question 4 • Physical Science

The equations are not balanced. Which equation would have the same coefficients in the same order as 2 CO sub 2 plus 3 cap h sub 2 0 rightarrow cap c sub 2 cap h sub 6 cap o plus 3 cap o sub 2 ?

Answer
A
Fe plus cap h sub 2 SO sub 4 rightarrow Fe sub 2 open paren SO sub 4 close paren sub 3 plus cap h sub 2
B
FeCl sub 3 plus NH sub 4 OH rightarrow Fe OH sub 3 plus NH sub 4 Cl
C
CH sub 4 plus cap o sub 2 rightarrow CO sub 2 plus cap h sub 2 cap o
D
PCl sub 5 plus cap h sub 2 cap o rightarrow HCI plus cap h sub 3 PO sub 4
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The equations are not balanced. Which equation…