Chemistry 0.0 / 5 ? ChemistryKey WordsGCSEAQA Created by: lizziemyers1Created on: 14-08-17 19:26 aqueous dissolved in water 1 of 25 compounds when atoms combine during a reaction 2 of 25 covalent bonds where atoms share electrons to gain a full outer shell 3 of 25 delocalised electron an electron that isn't associated with an atom or bond. 4 of 25 electrode a conductor through which electricity enters or leaves an object 5 of 25 electronic structure the state of electrons in an atom 6 of 25 electrons carry an electric charge inside an atom 7 of 25 isotope forms of an element with the same number of protons and electrons, but a different number of neutrons. 8 of 25 mixture when atoms have been mixed together, but there is no chemical bond between them. 9 of 25 neutralisation when an acid and an alkali react to make a salt and water 10 of 25 elements substances made up of atoms that all have the same number of protons and neutrons in their nucleus 11 of 25 ionic bonds a metal loses electrons, which are transferred to a non-metal during a reaction, changing the charge of the atoms 12 of 25 solutions mixtures of two or more substances 13 of 25 neutrons found in the nucleus of an atom, has no electric charge 14 of 25 protons found in the nucleus of an atom, has a positive electric charge 15 of 25 activation energy The energy needed to start the reaction. 16 of 25 Atom economy The way measure the atoms wasted when making a chemical. 17 of 25 Concentrations of solutions The amount of a substance in a certain volume of a solution. 18 of 25 Collision theory The collusion frequency during a reaction: the more colliding particles, the faster the reaction. 19 of 25 Electrolysis Where an electrical current is passed through an electrolyte (molten or dissolved ionic compound) to cause a reaction. 20 of 25 Moles The unit for amount of substance. 21 of 25 Oxidation When metals react with oxygen to form oxides. 22 of 25 Percentage yield The mass of a product made. 23 of 25 Polymers Monomers linked together to form a long molecule. 24 of 25 Reduction The loss of oxygen from a substance. 25 of 25
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