Which one represents the correct sum of the following reactions?
3 CH4 + 2 N2O3 + 3 CO2 + 4 NH3
2 NH3 + N2 + 3 H2

Iknow the answer is a but i don't know why

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.