What is the photoelectric effect? a. electricity produced when light hits metal b. electricity produced when electrons hit metal c. electricity produced when metal is hit with atoms d. electricity used to produce light from metals

What type of electromagnetic waves does the human eye see as the colors red blue or green a visible light waves b radio waves c infrared waves d microwaves

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).

Type the correct answer in each box.balance the chemical equation.__ n203 ➡️ __ n2 +__ o2