Question 1 Give the coefficients in front of each component in a correctly balan

Question

Question 1

Give the coefficients in front of each component in a correctly balanced equation; you must enter a "1" for the coefficient of any molecules that have only 1 molecule in the balanced equation:

Blank 1 Fe3O4 (s) + Blank 2 C(s) ----> Blank 3 CO2 (g) + Blank 4 Fe(s)

Question 2

Give the coefficients in front of each component in a correctly balanced equation; you must enter a "1" for the coefficient of any molecules that have only 1 molecule in the balanced equation:

Blank 1 KSCN + Blank 2 Fe2(SO4)3 --> Blank 3 K3Fe(SCN)6 + Blank 4 K2SO4

Question 3

What would the coefficient be in front of O2 in the equation below after it is balanced:

C3H9NO + O2 --> CO2 + H2O + NO2

Explanation / Answer

Fe3O4(s) + 2C(s) = 3 Fe(s) + 2 CO2(g)

Fe2(So4)3 + 12 KSCN = 2 K3Fe(SCN)6 + 3 K2So4

4 C3H9NO + 23 O2 = 12 CO2 + 18 H2O + 4 NO2

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