PLEASE HELP If 9.30 g of potassium reacts with 2.50 g of O2 to form K2O , what is the limiting reagent and what is the theoretical yield of the reaction?

Hint: write the balanced reaction

K - 39.10 g/mol

O - 15.999 g/mol

ANSWER CHOICES:

A.) O2 is limiting, 11.2 g of K2O formed

B.) K is limiting, 14.7 g of K2O formed

C.) K is limiting, 11.2 g of K2O formed

D.) O2 is limiting, 14.7 g of K2O formed

E.) O2 is limiting, 19.2 g of K2O formed

Express the following number in scientific notation. 0.026890 =

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