11. Which molecule will balance the following equation 4 NH3​ + 5 → 4 NO + 6 H2​O
a. O
b. O2
c. H2​O
d. NO2
12. Fill in the missing number to balance the equation.
2 Fe + 3 H2​SO4​ → 1 Fe2​(SO4​)3​ + __ H2
a. 3
b. 6
c. 2
d. 4
13. Balanced chemical reactions obey the law of conservation of mass
a. True
b. False
14. If I have 8 moles of Iron atoms in the products, how many moles of Iron atoms did I start with?
a. 8
b. 16
c. 1
d. Not enough information