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What is hydrogen??with it examples |
| Answer» HYDROGEN is the lightest element. At standard conditions hydrogen is a gas of diatomic molecules having the formula H2. It is COLORLESS, odorless, non-toxic, and highly combustible. Hydrogen is the most abundant chemical substance in the universe, constituting roughly 75% of all NORMAL matter.Explanation:Hydrogen combines with other ELEMENTS, forming a number of compounds, INCLUDING common ones such as water (H2O), ammonia (NH3), methane (CH4), table sugar (C12H22O11), hydrogen peroxide (H2O2) and hydrochloric acid (HCl), according to Jefferson Lab. | |