Light waves come in different wavelengths and frequencies. the color of the light we see is dependent on wavelength. when we see a rainbow, we are actually seeing

Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).

Which type of bonding involves the complete transfer of a valence electron from a less electronegative atom to a more electronegative one?

Which us an example of the practical pursuit of alchemy? a. linking spiritual characteristics with material substances b. forming perfect substances c. developing metalworking technique d. transforming base metals