H2 Educate vocabulary

the lightest and most abundant element; most hydrogen atoms consists of one proton and one electron

a resource that cannot be replenished in a short time and is considered finite

an attraction between oppositely charged ions that bonds two atoms

a voltaic cell in which the electrolyte is a paste

extremely high heat produced from a controlled nuclear reaction is used to decompose water into hydrogen & oxygen gases

a chemical reaction in which atoms or ions gain electrons

electron in the outermost energy level

a greenhouse gas that is a main ingredient in natural gas

smaller than an atom

a process in which one substance permeates another

a subatomic particle that has a negative charge found in an orbit around the nucleus

process in which wood chips and agricultural wastes are superheated until they turn into hydrogen and other gases

broken down into basic elements

an atom that has a net charge due to the loss or gain of an electron

a subatomic particle with a positive charge found in the

two or more elements chemically bonded together

a subatomic particle that has no electrical charge found in the nucleus

a chemical reaction in which atoms or ions lose electrons

a process that uses an electric current to break a molecule apart

a substance whose water solution conducts an electric current due to the presence of ions

the electrode of a fuel cell or battery that produces electrons

a reaction that separates a substance into two or more different substances

the smallest unit of an element that can exist alone or in combination

a material that forms a barrier and allows selective materials to pass

bonds that occur when atoms are held together with shared electrons

a large molecule made of many small repeating molecules

a substance in which all of the atoms are chemically identical

the capacity to do work or make a change

a chemical reaction that requires the input of energy

the arrangement of chemical elements by their physical and chemical properties

a device that converts electrical energy into chemical energy through electrolysis

a process in which algae and bacteria under certain conditions use sunlight to produce hydrogen

an industrial process that uses high-temperature steam to separate hydrogen from the carbon atoms in methane(CH4)

rapid chemical reaction of oxygen with a substance, producing light and heat

a form of energy that is created by the flow of electrons

the attachment of molecules of gases, liquids, or dissolved substances to a solid surface

the electrode of a fuel cell or battery that consumes electrons

an orbit around the nucleus of an atom in which electrons are found

a substance that conducts heat or electricity

generation of electricity at or near the location of consumption

a process in which atomic nuclei combine and release a large amount of energy

a molecule with two atoms

the path through which an electric current flows

device producesreaction between chemicals, &generates an electric current i; it doesnt run down or need recharged

a substance that increases the rate of a chemical reaction without being produced or consumed in the reaction

an electrolyte membrane that conducts positive ions and blocks negative ions

the potential energy that is stored in the bonds of molecules

a process that uses sunlight to split water into hydrogen and oxygen

the smallest particle of a covalently bonded compound; consists of atoms joined by covalent bonds

the number of protons in an atom’s nucleus

a substance or system that moves energy in a usable form from one place to another (for example, electricity)

the average mass of one atom of an element

a conductor that can carry electrons to or from a substance

a gas that causes heat to be trapped in the atmosphere, inhibiting the cooling of the Earth’s surface

organic materials used as fuel

branch of chemistry studying production of electricity by chemical reactions and chemical changes

energy in the form of electromagnetic waves; energy from the sun

process of turning coal into gases using high temperature,&pressure, then mixing the gases with steam to producehydrogen

the ratio of output energy per unit of input energy

a molecule that has both negative and positive poles

a cell that converts chemical energy to electricity; a battery

a colorless, odorless gas; stable oxygen atoms consist of eight protons, eight neutrons, and eight electrons

a device such as a battery or fuel cell that uses a chemical reaction to produce electricity

the network of wires and other equipment that delivers electricity

generation of electricity that is produced in large quantities off-site and then distributed to the consumers

a force within a particle

a resource that is inexhaustible or can be replenished in a short period of time

a clear, colorless, odorless, tasteless liquid essential for most plant & animal life; composed of chemically bondedH2&O

colorless, odorless, poisonous gas, produced by incomplete burning of carbon-based fuels, including gasoline, oil & wood

a fuel created by the decomposition of ancient organic materials

atoms of the same element, with differing numbers of neutrons

the breaking of a compound into its components

the center of an atom that includes the neutrons and protons

colorless, odorless, incombustible gas formed during respiration, combustion, organic decomposition; a greenhouse gas