(10 points) You have a sample of 63.5g of C2H6. How many moles of C2H6 are in the sample? Show work

Noble gases are the most reactive elements on the periodic table. a. true b. false

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

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.