2. Calculate the mass percent of oxygen in dinitrogen
tetroxide, N2O4(ſ).

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution