Answer to Question #155509 in General Chemistry for Sage Topaz

Question

Balance the following chemical equations: 

NH₃ + O₂   →    HNO_{3 +} H₂O

FeS₂ + O₂  → SO₂ + Fe₂O₃

K₂S₅ + HCl → H₂S + S + KCl

Cd + Ni (OH)₃ → CdO + Ni (OH)₂ + H₂O

Answer 1

NH₃ + 2O₂   →   HNO_{3 +} H₂O

4FeS₂ +11O₂  → 8SO₂ + 2Fe₂O₃

K₂S₅ + 2HCl → H₂S +4S + 2KCl

Cd + 2Ni(OH)₃ → CdO + 2Ni(OH)₂ + H₂O