In the article "A Sea of Garbage" what message is each cartoon trying to convey to readers? Do they succeed?

What reaction is taking place? 02 + c3h8 = h20 + co2

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?

What volume would 2.25 moles of ne has occupy at stp?