Which equation obeys the law of conservation of mass?
2c4h10 + 2cl2 + 12o2 7co2 + ccl4 + 10h2o
c4h10+ cl2 + 2o2 7co2 + ccl4 + 8h2o
2c4h10+ 2cl2 + 12o2 4co2 + ccl4 + h2o
2c4h10+ 2cl2 + 6o2 co2 + ccl4 + 6h2o
4c4h10+ 4cl2 + 14o2 14co2 + ccl4 + 20h2o

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant