Answers Physical Science Practice ExamQuestion 15

15

practice examMultiple Choice

Practice Exam

Question 15 • Physical Science

When balanced, which equation would have the coefficient 3 in front of any of the reactants?

Answer

A

cap c sub 2 cap h sub 4 cap o sub 2 plus cap o sub 2 rightarrow CO sub 2 plus cap h sub 2 cap o

B

Zn plus HCl rightarrow ZnCl sub 2 plus cap h sub 2

C

Fe plus AgNO sub 3 rightarrow Fe open paren NO sub 3 close paren sub 2 plus Ag

D

cap h sub 2 SO sub 4 plus cap b OH sub 3 rightarrow cap b sub 2 open paren SO sub 4 close paren sub 3 plus cap h sub 2 cap o

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