Which of the following gas samples would have the largest volume, if all samples are at the same temperature and pressure? A. 0.498 moles CO2
B. 19.91 grams of Ar
C. 3 x 10^ 23 molecules of H2
D. They would all have the same volume

12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]

Which sample at stp has the same number of atoms as 18 liters of ne at stp

Hno2 + caco3 = h2co3 + ca(no2) can someone balance this