Writing and Balancing Chemical Equations Answers
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Which chemical equation is unbalanced?
A
C + O2 CO2
B
Sr + O2 2SrO
C
6H2 + 3O2 6H2O
D
H2 + H2 + O2 H2O + H2O
2
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The compound CO2 is made of
A
two atoms of cobalt.B
one atom of cobalt and two atoms of oxygen.C
two atoms of carbon and one atom of oxygen.D
one atom of carbon and two atoms of oxygen.3
The compound FeCl3 is made of
A
three molecules of iron chloride.B
one atom of iron and three atoms of carbon.C
one atom of iron and three atoms of chlorine.D
two atoms of iodine, one atom of iron, and one atom of carbon.4
Which formula equation represents the burning of sulfur to produce sulfur dioxide?
A
Upper S (s) plus upper O subscript 2 (g) right arrow with delta above upper S upper O subscript 2 (g).
B
2 upper H subscript 2 upper s (s) plus 3 upper 0 subscript 2 (g) right arrow 2 upper H subscript 2 upper O (l) plus 2 upper S upper 0 subscript 2 (g).
C
4 upper F e upper S subscript 2 plus 11 upper O subscript 2 right arrow 2 upper F e subscript 2 upper O subscript 3 plus 8 upper S upper O subscript 2.
D
2 upper S upper O subscript 2 (g) plus upper O subscript 2 (g) right arrow with upper V subscript 2 upper O subscript 5 above arrow 2 upper S upper O subscript 3 (g).
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