sentences: the drain cleaner is added into water & a drain cleaner consists of sodium hydroxide and aluminum -> bottle hydroxide, aluminum, and land are combined sodium hydroxide, aluminum, and water are combined  sodium hydroxide, aluminum, and water are combined & benefits is produced -> hydrogen is produced when sodium, aluminum, and water are combined hydrogen is produced when sodium, aluminum, and water are combined  bottle hydroxide, aluminum, and land are combined & the solution becomes really hot -> heat energy is released when sodium hydroxide, aluminum, and water are combined heat energy is released when sodium hydroxide, aluminum, and water are combined  hydrogen is produced when sodium, aluminum, and water are combined & light matter is released when radium hydroxide, aluminum, and land are combined -> a chemical reaction happened when sodium hydroxide, aluminum, and water are combined