Please Help me it’s balancing equations

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work

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.