what does hydrogen mean

HYDROGEN | English meaning

Hydrogen is a chemical element that is the lightest gas, has no colour, taste, or smell, and combines with oxygen to form water. Learn more about hydrogen''s properties,

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HYDROGEN Definition & Meaning | Dictionary

noun. 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

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hydrogen | Etymology of hydrogen by etymonline

The meaning "bag or hollow vessel filled with heated air or (later) hydrogen or helium so as to rise and float in the atmosphere oh interjection expressing various emotions (fear, surprise, pain, invocation, gladness, admiration, etc.), 1530s, from Middle English o, from Old French ô, oh or directly from Latin o, oh; a common Indo

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Hydrogen

Hydrogen is an essential element for life. It is present in water and in almost all the molecules in living things. However, hydrogen itself does not play a particularly active

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Hydrogen Breath Test: What Is It, How To Prep & Results

The hydrogen breath test is a simple and noninvasive way to diagnose common gastrointestinal conditions, including lactose intolerance and SIBO (small intestine bacterial overgrowth). It does take some advance preparation to make sure results are accurate. The breath test evaluates your digestion of particular sugars by measuring the

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Hydrogen Definition & Meaning

The meaning of HYDROGEN is a nonmetallic gaseous chemical element with atomic number 1 that is the simplest and lightest of the elements and that is used especially in

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What Exactly Does A Hydrogen Economy Mean? ~ Hydrogen

As often as it is now being used, the hydrogen economy term is rarely defined. As a result, the concept is rather vague. Currently, it essentially simply refers to the concept of using H2 as a source of low- or zero-carbon energy for meeting the clean power needs of a location such as a city, province, state, region, country, or even the world.

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Hydrogen embrittlement

Hydrogen embrittlement ( HE ), also known as hydrogen-assisted cracking or hydrogen-induced cracking ( HIC ), is a reduction in the ductility of a metal due to absorbed hydrogen. Hydrogen atoms are small and can permeate solid metals. Once absorbed, hydrogen lowers the stress required for cracks in the metal to initiate and propagate, resulting

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Hydrogen

Any hydrogen that does enter the atmosphere quickly escapes the Earth''s gravity into outer space. Most hydrogen is produced by heating natural gas with steam to form syngas (a mixture of hydrogen and carbon monoxide). The syngas is separated to give hydrogen. Hydrogen can also be produced by the electrolysis of water.

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Definitions of Oxidation and Reduction

Oxidation is the gain of oxygen. Reduction is the loss of oxygen. For example, in the extraction of iron from its ore: Because both reduction and oxidation are occurring simultaneously, this is known as a redox reaction. An oxidizing agent is substance which oxidizes something else. In the above example, the iron (III) oxide is the oxidizing

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HYDROGEN | definition in the Cambridge English Dictionary

HYDROGEN meaning: 1. a chemical element that is the lightest gas, has no colour, taste, or smell, and combines with. Learn more.

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Hydrogen sulfide

Hydrogen sulfide is a chemical compound with the formula H 2 S is a colorless chalcogen-hydride gas, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs. Swedish chemist Carl Wilhelm Scheele is credited with having discovered the chemical composition of purified

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9.19: Hydrogen Bonding

A hydrogen bond is an intermolecular attractive force in which a hydrogen atom that is covalently bonded to a small, highly electronegative atom is attracted to a lone pair of electrons on an atom in a neighboring molecule. Hydrogen bonds are very strong compared to other dipole interactions. The strength of a typical hydrogen bond is about

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What does hydrogen mean?

Definition of hydrogen in the Definitions dictionary. Meaning of hydrogen. What does hydrogen mean? Information and translations of hydrogen in the most comprehensive dictionary definitions resource on the web.

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Hydrogen peroxide

Hydrogen peroxide is a chemical compound with the formula H 2 O 2 its pure form, it is a very pale blue liquid that is slightly more viscous than water is used as an oxidizer, bleaching agent, and antiseptic, usually as

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Hydrogen Bonding

Any molecule which has a hydrogen atom attached directly to an oxygen or a nitrogen is capable of hydrogen bonding. Such molecules will always have higher boiling points than similarly sized molecules which don''t have an -O-H or an -N-H group. The hydrogen bonding makes the molecules "stickier", and more heat is necessary to

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Hydrogen Definition & Meaning | Britannica Dictionary

HYDROGEN meaning: a chemical element that has no color or smell and that is the simplest, lightest, and most common element

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Hydrogen peroxide: Definition, uses, and risks

Hydrogen peroxide is a cerumenolytic, meaning it can dissolve earwax. For this reason, many ear drops contain hydrogen peroxide as a common ingredient to remove earwax .

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Hydrogen explained

Hydrogen is an energy carrier. Energy carriers transport energy in a usable form from one place to another. Elemental hydrogen is an energy carrier that must be produced from another substance. Hydrogen can be produced—or separated—from a variety of sources, including water, fossil fuels, or biomass and used as a source of energy or fuel.

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Hydrogen chloride Definition & Meaning

The meaning of HYDROGEN CHLORIDE is a colorless pungent poisonous gas HCl that fumes in moist air and yields hydrochloric acid when dissolved in water.

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Hydrogen Bond Definition and Examples

A hydrogen bond is a type of attractive (dipole-dipole) interaction between an electronegative atom and a hydrogen atom bonded to another electronegative atom. This bond always involves a hydrogen

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Hydrogen

Hydrogen is a chemical element; it has symbol H and atomic number 1. It is the lightest element and, at standard conditions, is a gas of diatomic molecules with the formula H2,

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How to Interpret Hydrogen Breath Tests

Patient Preparation. The subjects are asked to avoid slowly absorbed carbohydrates (like bread and potato) and fiber the previous night as these would cause delayed excretion of hydrogen in breath. 2 Cigarette smoking and exercise are avoided 2 hours before and during the test, as hyperventilation can cause changes in breath

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Hydrogen Cars: Everything You Need To Know

Hydrogen fuel-cell vehicles are related to electric cars, but these machines have pros and cons that make them different from the typical battery-powered EV. What this means is that a fuel

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How to Interpret Hydrogen Breath Tests

Breath test is performed after overnight fast. Before the test, subjects are asked to brush their teeth and rinse mouth with antiseptic mouth wash and tap water, to eliminate an early hydrogen peak due to action of oral bacteria on test sugars. 2 End-expiratory breath samples are collected either in bag or syringes.

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Hydrogen Peroxide: How to Use It Properly

That means it''s 97% water and 3% peroxide. "Medical grade is strong enough for household use," says Dr. Beers. You can also buy a more concentrated form of hydrogen peroxide, called food

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What Is Created When Hydrogen Burns? | Sciencing

The most common substance resulting from hydrogen combustion is water. The hydrogen atoms mix with the oxygen atoms and create the essential H20 formula, resulting in a light residue of water that may escape as water vapor or condense on surfaces near where the hydrogen is burned. Of course, air is only partly oxygen and

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Hydrogen peroxide

Hydrogen peroxide is a chemical compound with the formula H 2 O 2 its pure form, it is a very pale blue liquid that is slightly more viscous than water is used as an oxidizer, bleaching agent, and antiseptic, usually as a dilute solution (3%–6% by weight) in water for consumer use and in higher concentrations for industrial use ncentrated hydrogen

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Removing earwax with hydrogen peroxide: Does it work, and how?

Hydrogen peroxide is a common ingredient in ear drops, and it can help to soften and dissolve buildups of earwax. However, if a person has an ear infection, or the ear has been damaged, they

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HYDROGEN | English meaning

HYDROGEN definition: 1. a chemical element that is the lightest gas, has no colour, taste, or smell, and combines with. Learn more.

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Why Does Hydrogen Peroxide Bubble When You Put It on a Cut?

What you are buying is a 3 percent solution, meaning the bottle contains 97 percent water and 3 percent hydrogen peroxide. Most people use it as an antiseptic. It turns out that hydrogen peroxide is not very good as an antiseptic, but it is not bad for washing cuts and scrapes, and the foaming looks cool. So why does hydrogen peroxide

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Hydrogen Breath Test: What It Is and How It Can Help

4 min read. A hydrogen breath test can help determine if you have one of a few conditions that can affect your digestive health. It may tell you if you have too much bacteria in your gut, if you

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Hydrogen | Properties, Uses, & Facts | Britannica

Hydrogen is the simplest and most abundant element in the universe, with one proton and one electron in its nucleus. It forms water when it burns with oxyge

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Potential Hydrogen

What Does Potential Hydrogen Mean? pH is a figure that represents potential hydrogen, and is the measure of acidity or alkalinity in any water-soluble substance. pH values are represented on a logarithmic scale with numbers 1-14 with 7 being a neutral point. Values below 7 indicate acidity with lower numbers indicating greater

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hydrogen summary | Britannica

hydrogen, Lightest chemical element, chemical symbol H, atomic number 1. A colourless, odourless, tasteless, flammable gas, it occurs as the diatomic molecule H 2.

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