Please help. I'm not good with Mole ratios. I'll give 100 more points on a different, super easy question if you help (like something about spongebob or something). I don't need you to give me the answer, but could you just explain to me how to figure the answer out? Thanks sooo much if you can!

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

11) burning your hand when accidentally touching a hot plate is an example of which heat transfer? a. conduction b. convection c. radiation d. none of these

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.