What is the theoretical yield of the reaction of aluminum oxide when 15.0 g of aluminum reacts with excess oxygen? 4Al(s) + 3O2(g) → 2Al2O3(s)

1. and 2. question: in which equation? or i don't understand you, 3. a), 4. c), 5. c), 6. b), 7. d), 8. d) if small number is underlined(behind symbol) , b) if big number is underlined(in front of symbol)9. what is underlined there? 10. c)

Hope the image of the frequency formula

Answercan utilize even low wind speed to produce electricity;