A pH value is the quantitative measure of the acidity or basicity of aqueous or other liquid solutions. The term, widely used in chemistry, biology, and agronomy, translates the values of the concentration of
To support a wide range of applications, DOE is advancing technologies to enable delivery of hydrogen as a gas in pipelines and high
A chemical reaction is a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds.
Learn about hydrogen, the most abundant element in the universe and the third most abundant on Earth. Find out how hydrogen is discovered, named, and
Tritium, (T, or 3H), the isotope of hydrogen with atomic weight of approximately 3. Its nucleus, consisting of one proton and two neutrons, has triple the mass of the nucleus of ordinary hydrogen. Tritium is a
Chemical bonding, any of the interactions that account for the association of atoms into molecules, ions, crystals, and other species. When atoms approach one another, their electrons
Hydrogen chloride, a compound of the elements hydrogen and chlorine, a gas at room temperature and pressure. Its chemical formula is HCl. A solution of the gas in water is called
Elemental hydrogen is an energy carrier that generally presents as two hydrogen molecules (H 2). Hydrogen can be produced, or separated, from a variety of sources—including water, fossil fuels, or
Sodium - Chemical Properties, Reactions, Uses: Generally, elemental sodium is more reactive than lithium, and it reacts with water to form a strong base, sodium hydroxide (NaOH). Its
Hydrogen peroxide, colorless liquid usually produced as aqueous solutions of various strengths that has a number of commercial uses.
Hydrogen - Fuel, Energy, Uses: The most important industrial method for the production of hydrogen is the catalytic steam–hydrocarbon process, in which gaseous or vaporized
Hydrogen - Reactivity, Uses, Properties: One molecule of hydrogen dissociates into two atoms (H2 → 2H) when an energy equal to or greater than the dissociation energy (i.e., the amount
Element Hydrogen (H), Group 1, Atomic Number 1, s-block, Mass 1.008. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Hydrogen, a colorless, odorless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements. The earliest known chemical property of
Hydrogen is a colorless, odorless gas. It is easily ignited. Once ignited it burns with a pale blue, almost invisible flame. The vapors are lighter than air. It is flammable over a wide range of vapor/air
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