AQA C2 CHEM (SVS) Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
ACID | contains H+ ions |
ACTIVATION ENERGY | the minimum amount of energy required for a successful reaction to happen |
ADDITIVE | substances added to food to enhance flavour, colour, shelf- life |
ALKALI | soluble base |
ALLOY | mixtures of metals or mixtures of metal with a non-metal (e.g. Steel is Iron & Carbon) |
ANHYDROUS | water is absent in the crystal product (e.g anhydrous Copper Sulphate is white) |
ANODE | positive electrode. Negative ions attracted to it |
AQUEOUS SOLUTION | a solution that contains water as the solvent |
ATOMIC NUMBER | number of protons or electrons an element has |
BASE | substance that will neutralise an acid |
BAUXITE | an ore that contains Aluminium |
BRINE | Aqueous solution of salt (Sodium Chloride) and water |
CATALYST | speeds up reaction, lowers activation energy, usually a transition metal |
CATHODE | negative electrode in electrolysis. Positive ions attracted to it |
CHROMATOGRAPHY | a method for separating different mixtures of chemicals based on their properties (e.g. solubility) |
CLOSED SYSTEM | where reactants or products cannot escape |
COLLISION THEORY | describes how particles behave in a reaction |
CONCENTRATION | the ‘amount’ of substance |
CORROSION | electrochemical reaction between a material, usually a metal, and its environment that produces a deterioration of the material |
COVALENT | electrons are shared between non-metals |
CRYOLITE | lowers the melting point of Aluminium Oxide |
DECOMPOSE | break down into simpler compounds or elements |
DELOCALISED | where electrons are free to move within structure, allows a charge to be carried |
DIAMOND | Giant covalent – made from C atoms |
DUCTILE | able to be drawn into thin wires |
ELECTROLYSIS | splitting IONIC compounds into ions using electricity |
ELECTROLYTE | the solution electrolysis is carried out in |
ELECTRON | orbits nucleus, has negative charge |
ELECTRON SHELL | electrons fill shells in the sequence 2,8,8,2. |
ELECTROPLATING | Coat (a metal object) by electrolytic deposition with another metal |
ELECTROSTATIC ATTRACTION | attraction between ions with opposite charges |
EMPIRICAL FORMULA | simplest ratio of atoms in a compound |
ENDOTHERMIC | a reaction which takes in heat energy from its surroundings |
ENZYME | a biological catalyst |
EQUILIBRIUM | A ‘balance’ in a reversible reaction between reactants and products |
EXOTHERMIC | a reaction which releases heat energy |
FORMULA MASS | atomic masses added together |
FULLERENES | A form of carbon having a large spheroidal molecule consisting of a hollow cage of atoms |
GRAPHITE | Giant covalent. Made of C atoms. Layers can slide over each other. Has delocalised electrons |
HYDRATED | when water is present in the crystal (e.g. Hydrated Copper Sulphate is Blue) |
HYDROXIDE | ions that make a substance alkali |
INDICATOR | changes colour according to the pH of the solution |
INSOLUBLE | will not dissolve in water |
INTERMOLECULAR FORCE | weak force between simple molecules |
ION | an atom that has a charge (because it has lost or gained an electron) |
IONIC | electrons are lost or gained between metal and non-metal atoms |
ISOTOPE | atom of same element with different numbers of neutrons |
LATTICE | a 3-D structure of bonds |
MACROMOLECULE | a large molecular structure (e.g giant covalent) |
MALLEABLE | metal atoms can slide past each other so metals can be shaped |
MASS (Mr) | the formula mass of a compound |
MASS SPECTROMETRY | detects the mass or charge of chemicals in a substance |
MOLE | formula mass of a compound or atomic mass of an atom |
MOLECULAR ION PEAK | the peak in a spectrum corresponding to the mass of the molecular weight of the compound |
MOLTEN | liquefied by heat- ions are free to move |
MONOMER | an alkene unit used to form polymers |
NANOTECHNOLOGY | very very small scale (10-9) |
NEUTRAL | pH of 7 |
NEUTRALISATION | reaction when an acid reacts completely with a base |
NITRATES | salts formed by the reation of Nitric Acid with a base |
NUCLEUS | centre of the atom – contains protons and neutrons |
NEUTRON | has no charge and a mass of 1. Found in the nucleus |
OXIDATION | the loss of electrons |
pH | a measure of the concentration of Hydrogen ions |
PHOTOSYNTHESIS | chemical reaction that produces glucose and oxygen from water carbon dioxide and light energy |
POLYMER | a long chain of single bond repeating monomer units |
PRECIPITATE | when you get a solid formed in solution |
PRODUCT | what is made in a chemical reaction (on right hand side of equation) |
PROTON | has a positive charge. Found in the nucleus. Mass of 1 |
REACTANT | the reacting chemicals in a reaction (on left side of equation) |
REACTION RATE | how fast the reaction happens |
REDOX | a reaction where oxidation and reduction happen |
REDUCTION | the gain of electrons |
REVERSIBLE | reaction can go forwards and backwards (double arrows) |
RESPIRATION | chemical reaction that produces carbon dioxide and water from glucose and oxygen (reverse of photosynthesis) |
RETENTION TIME | the amount of time taken from the injection of a sample into a Gas Chromatography machine to the recording of the maximum peak in the sample |
REVERSIBLE REACTION | where the reactants make the products and products can re-form the reactants |
SOLUBLE | dissolves in water |
SOLUTE | substance being dissolved |
SOLUTION | mixture of solvent and solute |
SULFATES | salts formed when Sulfuric Acid reacts with a base |
SUSTAINABLE | using resources without affecting the ability of people in the future to use those resources |
THERMAL DECOMPOSITION | breaking down into simpler compounds using heat |
THERMOSOFTENING | polymers that can be re-heated and re-moulded |
THERMOSETTING | once set, these polymers cannot be remoulded |
TRANSITION METALS | middle block of metals in the Periodic Table |
YIELD | the amount of product you make in a reaction |
Created by:
docshort
Popular Chemistry sets