What mass of water is produced from the complete combustion of 5.50×10−3g of methane?

List four observations that indicate that a chemical reaction may be taking place

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.

In one or two grammatically correct sentences, write a definition for the term molecule geometry