What volume of Cl2 gas, measured at 685 torr and 33°C, is required to form 27 g of NaCl?

Which statement about the stamps is correct?

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

Acompound has a molar mass of 92.02 grams/mole, and its percent composition is 30.4% nitrogen (n) and 69.6% oxygen (o). what is its molecular formula? a. n2o4 b. no2 c. n2o d. n4o2