How to balance equations and find mass

What are the resulting coefficients when you balance the chemical equation for the combustion of ethane, c2h6? in this reaction, ethane is burned in the presence of oxygen (o2) to form carbon dioxide (co2) and water (h2o). (g)+(g)→(g)+(g)

How have the greenhouse gasses increased from the year 2000 to 2018

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?