What is the only mixture in a high concentration to dissolve high purity gold

The pressure in a fluid is affected by which characteristics of that fluid

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.

What percentage of energy used in the u.s is produced from fossil fuels