All examples involve chemical energy except select one of the options below as your
a. working muscles using food
b. burning a candle
c. coasting downhill on a bike

Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false