Words nearby hydrogen
How to use hydrogen in a sentence
That’s because plastics are mainly made up of carbon and hydrogen, very widespread elements.Microplastics are everywhere. Here’s what that means for our health.|Ula Chrobak|February 11, 2021|Popular-Science
Making renewable hydrogen requires making electricity to send a charge through water to split the liquid into hydrogen and oxygen.A startup using a new tech to make hydrogen extracts cash from Bill Gates’ climate tech fund|Jonathan Shieber|February 9, 2021|TechCrunch
There, a chemical process breaks the bond between water’s hydrogen and oxygen molecules, forming heat.The Kora Xenolith Is My Secret Weapon Against the Cold|Wes Siler|February 2, 2021|Outside Online
To begin, the scientists shined X-ray light on hydrogen gas.Physicists have clocked the shortest time span ever|Maria Temming|January 29, 2021|Science News For Students
Polyethylene is a long molecule, in which hydrogen atoms are connected to a carbon backbone that can be thousands of carbon atoms long.Chemists are reimagining recycling to keep plastics out of landfills|Maria Temming|January 27, 2021|Science News
Methane (chemical formula CH4) is one of the simplest hydrocarbons, which literally means “containing hydrogen and carbon.”
From that, they extracted the ratio of the number of deuterium atoms to the number of hydrogen atoms.
They found that there are roughly 1,900 hydrogen atoms for each deuterium atom in the water on Comet 67P.
Deuterium is an isotope of hydrogen containing a proton and neutron in its nucleus, while normal hydrogen has only a proton.
Jupiter and its cousins, by contrast, are mostly made of hydrogen and hydrogen compounds.
Hydrogen sulphid is easily prepared in the simple apparatus shown in Fig. 30.
It is allowed to cool, and hydrogen sulphid gas is passed through it for about five minutes.
Ammonia is a compound of nitrogen and hydrogen, but it cannot be formed by the direct union of these gases.Elements of Agricultural Chemistry|Thomas Anderson
One morning he found that the amount of hydrogen was scarcely perceptible; still there was water in the pit.
The older workman reassured them; the carbon was much heavier than oxygen, and even thicker than hydrogen.
British Dictionary definitions for hydrogen
- a flammable colourless gas that is the lightest and most abundant element in the universe. It occurs mainly in water and in most organic compounds and is used in the production of ammonia and other chemicals, in the hydrogenation of fats and oils, and in welding. Symbol: H; atomic no: 1; atomic wt: 1.00794; valency: 1; density: 0.08988 kg/m³; melting pt: –259.34°C; boiling pt: –252.87°CSee also deuterium, tritium
- (as modifier)hydrogen bomb
Word Origin for hydrogen
Scientific definitions for hydrogen
Cultural definitions for hydrogen
The lightest chemical element; its symbol is H. Hydrogen normally consists of a single electron in orbit around a nucleus made up of a single proton. It is usually found as a gas and has several uses as a fuel.