most common thing in our life - WATER. Water consists of two chemical elements, hydrogen and oxygen. Each molecule of water consists of two hydrogen (H2) atoms and one oxygen (O) atom. Chemical binding between these three atoms is very stable and strong. Therefore, the reaction of hydrogen and oxygen is under normal circumstances very intense and generates a lot of energy. 2H2 + O2 ® 2H2O + energy Both, hydrogen and oxygen are gases at normal temperatures and pressures and the product of this
Hydrogen is a diatomic element that is in a gaseous form at room temperature. Its most identifying characteristic is the fact that it is highly explosive. It is the lightest element in the world, and has a lifting power of 8% more than that of helium. Hydrogen was used in airships and zeppelins for more than 20 years during the beginning of the 20th century. This practice stopped abruptly after the German airship Hindenburg disaster over New Jersey. It is used in fuel cells to create electricity
Oxides of Hydrogen Introduction: Hydrogen atoms can react with oxygen atoms forming different compounds. There are mainly two types, one is water and the other is hydrogen peroxide. Structure: A water molecule is made up of two hydrogen atoms and one oxygen atom joining together by covalent bonds. The shape of it is bent and its bond angle is of 105°. The structure is shown below. [IMAGE] A hydrogen peroxide molecule consists of two hydrogen atoms and two oxygen atoms joined
HYDROGEN Hydrogen is a gaseous element, symbol H, usually classed in group 1 (or Ia) of the periodic table Hydrogen melts at –259.2° C (–434.56° F) and boils at –252.77° C (–422.986° F). Hydrogen was confused with other gases until the British chemist Henry Cavendish demonstrated in 1766 that it was evolved by the action of sulfuric acid on metals and also showed at a later date that it was an independent substance that combined with oxygen to form water. The British chemist Joseph Priestley named
Hydrogen Hydrogen is a tasteless, odorless, colorless gas. Hydrogen is found in group 1 and period 1 on the periodic table. Hydrogen is classified as a nonmetal on the periodic table. The symbol for hydrogen is represented by an H, its atomic number is 1, and its atomic weight is 1.0079. The hydrogen atom consists of one proton, which has a positive charge, and one electron, which has a negative charge. The term hydrogen comes from two Greek words meaning water-former. Henry Cavendish, an English
Production of hydrogen Hydrogen can be produced from a variety of feedstock. These comprises of non-renewable fossil resources, such as coal and natural gas, as well as renewable resources, such as biomass and water with input from renewable energy sources for example sunlight, hydro-power, wind and waves. The variability of process technologies used range from chemical and biological to electrolytic, photolytic and thermo-chemical. Each of these mentioned technologies are in a different stage of
Hydrogen Bonding Contents Introduction Evidence of Hydrogen Bonding What causes Hydrogen Bond Types of Hydrogen Bonding Intermolecular Hydrogen Bond Intramolecular Hydrogen Bond Hydrogen Bond in Proteins Properties Of Hydrogen Bond Higher Melting And Boiling Point Association Influence On Physical State Solubility Volatility Importance INTRODUCTION In 1920, Latimer and Rosebush introduced the idea of "Hydrogen Bond" to explain the nature of association in liquid
Hydrogen gas was first identified as an element in 1766, by British scientist Henry Cavendish, in an experiment wherein he separated hydrogen gas by reacting zinc metal plates with hydrochloric acid. Cavendish found that when he applied a spark to the resulting hydrogen gas, it yielded water. It wasn’t until some years later that French chemist Antoine Lavoisier gave hydrogen its modern name. The word hydrogen is derived from the Greek words ‘hydro’ and ‘genes’, which translate as ‘born of water
on the periodic table. One of the elements is hydrogen. Hydrogen the first element in the periodic table it is colorless, combustible and lightest of all gases. It was first artificially produced in the early 16th century by Henry Cavendish. As we know hydrogen can be used as fuel, and the fossil fuel energy has been used in many areas, but human can’t produce the fossil energy fuel by themselves, the more we use, the less we have left, so hydrogen may be used as the most common use fuel instead
Hydrogen: the most abundant element in the universe. Normally it has been considered to remain a non-metal at any range of temperatures and pressures. That is, until now. Recently this year, hydrogen was changed into a metallic substance, which could conduct electricity. An experiment conducted by William J. Nellis et al. at the Lawrence Livermore National Laboratory accomplished this feat. Hydrogen was converted from a non-metallic liquid, into a liquid metal. The likelihood that the most abundant
The Hydrogen Bomb Thesis Statement The hydrogen bomb is a nuclear weapon in which light atomic nuclei of hydrogen are joined together in an uncontrolled nuclear fusion reaction to release tremendous amounts of energy. The hydrogen bomb is about a thousand times as powerful as the atomic bomb, which produces a nuclear fission explosion about a million times more powerful than comparably sized bombs using conventional high explosives such as TNT. The Hydrogen Bomb The Atomic Bomb Was A Essential
containing more than about 8 percent hydrogen peroxide are corrosive to the skin. First recognized as a chemical compound in 1818, hydrogen peroxide is the simplest member of the class of s. Of the several processes of manufacture, the principal ones involve reactions of oxygen from the air with certain organic compounds, especially anthraquinone or isopropyl alcohol. Major commercial grades are aqueous solutions containing 35, 50, 70, or 90 percent hydrogen peroxide and small amounts of stabilizers
essential element is hydrogen, the first element on the period table (located under Group 1 as an alkaline metal) is composed of a single proton and electron; therefore having an atomic number and atomic mass of 1 and electron configuration of 1s1. In fact, hydrogen is the lightest, simplest and most commonly found chemical element in the universe (it makes up about 90% of the universe by weight). Interestingly enough, the heavier elements on the periodic table were either made from hydrogen or other elements
Storing the Impossible: Hydrogen ("Thinkquest internet challenge," 2000) The earth’s supply of gasoline is slowly diminishing along with the cleanliness. In a desperate attempt to save precious gas, scientists have been attempting to find new ways to store and use energy. One way that scientists are consistently trying out is storing hydrogen. According to Demirbas(2001), “Because hydrogen can be easily generated from renewable energy sources and water, it has great potential as an energy source”
Hydrogen peroxide is an organic molecule only containing hydrogen and oxygen. The common name for hydrogen peroxide is hydrogen peroxide. The IUPAC ID name is dihydrogen dioxide. This molecule is pale blue but colorless in its purest form. Hydrogen peroxide occurs in nature very rarely. Hydrogen peroxide can occur in multiple states, such as, liquid, and gas. This compound is also odorless and can have a slightly acidic taste. The acidity of this compound ranges from a pH of 4.3-5.1 meaning this
HYDROGEN BOND By- Abhinav priyadarshi (IPM2013005) Shivam Kumar Arya (IPM2013122) Definition of Hydrogen Bonding- Hydrogen bond is the interaction between a hydrogen atom from a molecule and an another atom or a group of atom which may be of the same or a different molecule. Example- In general a hydrogen bond is depicted as- Let X–H be a molecule
into alternate energy research with hydrogen as the front runner. This is free money companies are receiving to research and develop hydrogen-powered vehicles. It's no wonder why people are lured into the hydrogen revolution. Each type of alternate energy comes with its own pros and cons. Like any product, the marketers will only mention the pros of the product they are selling and the cons of their competitors. In the end whoever has the most money, wins. Hydrogen powered vehicles have received the
Decomposition of Hydrogen Peroxide Aim: My aim in this experiment is to investigate the effect of changing the concentration of the substance (Hydrogen Peroxide) in an enzyme controlled reaction. Prediction: I predict that the higher the amount of Hydrogen Peroxide I use then the faster the displacement reaction will be. Therefore, the less substrate I use then the slower the displacement reaction will be. Hypothesis: I performed a preliminary experiment to distinguish the amount of
1. Hydrogen Economy 1.1 Introduction Coal, oil and natural gas have been at the forefront of powering the world since the industrial revolution. Whether this power is used for new technology, transport links or energy the threat that fossil fuels has on the environment is colossal. Energy availability for the masses is the main dominant challenge in the 21st century and is driven by the world’s forever increasing population and the industrialization of developing countries (Crabtree, Dresselhaus
Hydrogen sulphide has a boiling point of -82 degrees Celsius and a melting point of -60 degrees Celsius. There are 2 hydrogen and 1 sulphide molecule. Simple molecule’s which are covalent have lower melting and boiling points as they do not need too much energy to separate the bonds because they are as polarised as water. In hydrogen sulphide the intermolecular forces are known as Dipole-Dipole forces which are less powerful than hydrogen bonding which is in water therefore water has the strongest