If 0.25 L propane, C3H8, (Molar Mass: 44.11 g/mol) reacts with excess oxygen gas, how many grams of water (Molar Mass: 18.02 g/mol) would form? C3H8 + 5O2 = 3CO2 + 4H2O

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

All of the following are part of the biosphere except

Name the intersection of plane bpq and plane cpq.