In a reaction H2 + O2 → H2O, the oxidation number for O2 is?

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

Plzz a sample of table sugar (sucrose, c12h22o11) has a mass of 7.801 g. ● a) calculate the number of moles of c12h22o11 in the sample b) calculate the number of moles of each element in c12h22o11 (number of moles of c, number of moles of h & number of moles of o) in the sample. (use your answer from part a as your starting point.) show your work and highlight your final answer. calculate the number of atoms of each element in c12h22o11 (number of atoms of c, number of atoms of h & number of atoms of o) in the sample. (use your answers from part b as your starting for each element.) show your work and highlight your final answer.