Please help do the questions you know how to do​

What is the name of this hydrocarbon?

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?