Chemistry Revision

3. The electrons in the outer shell of an atom.
5. A negatively charged particle found in electron shells outside the nucleus.
6. The change in state from solid to liquid.
8. The reatios of the reactants and products shown in a balanced chemical equation
10. A very large molecule, e.g. a polymer or a giant covalent structure.
11. A substance that dissolves in a solvent
14. The amount of product obtained in a reaction
15. A hydrocarbon with one or more double (or triple) bonds
16. The liquid that runs through the filter paper when carrying out filtration
18. a substance that dissolves another substance
19. Two or more substances mixed together but not chemically combined.
20. A hydrocarbon with the general formula CnH2n+2

1. A form of carbon that conducts electricity and is used for inert electrodes.
2. the solid obtained on the filter paper when carrying out filtration
4. a method for finding the amount of a susbtance in a solution
7. A particle (proton or neutron) in the nucleus of an atom
9. A process that uses electricity to coat one metal with another.
12. reducing agent
13. The breakdown of a compound by reaction with water. Acids or alkalies speed up hydrolysis.
17. A hydrocarbon containing on or more C=C bonds and having the general formula CnH2n