Which of the following describes what all electromagnetic waves have in common? O They are all visible to the human eye
They all pass through different substances with the same frequency
O They all have the same wavelength
They all move through empty space at the speed of light,

The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes with the propane (c3h8) to burn it completely. for every gram of propane that flows through the burner, what volume of air is needed to burn it completely? assume that the temperature of the burner is 195.0°c, the pressure is 1.05 atm, and the mole fraction of o2 in air is 0.210.