Each molecule of water is made up of two hydrogen atoms bonded to one oxygen atom. In 1766, during an acid metal reaction, Henry Cavendish first formally recognized hydrogen. In 1781 he also found that hydrogen produces water when burned.
voe. 1  first-person singular present subjunctive of. 2  third-person singular present subjunctive of.
VOC. abbreviation for. 1. (Chemistry) volatile organic compound: one of a number of chemicals, including benzene and acetone, that evaporate or vaporize readily and are harmful to human health and the environment.OC. abbreviation for. 1. (Chemistry) volatile organic compound: one of a number of chemicals, including benzene and acetone, that evaporate or vaporize readily and are harmful to human health and the environment.