Chemistry: C1 - Atomic Structure Combined Science AQA

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  • Created by: AlyssaW
  • Created on: 02-05-18 17:12
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  • Chemistry: C1- Atomic Structure
    • Chemical Equations
      • No new atoms are ever created or destroyed in a chemical reaction.
        • the total mass of reactants = the total mass of products
      • There is the same number of each type of atom on each side of a balanced symbol equation.
        • No new atoms are ever created or destroyed in a chemical reaction.
          • the total mass of reactants = the total mass of products
      • You can include state symbols to give extra information in balanced symbol equations.
        • s = solids
        • l = liquids
        • g = gases
        • aq = aqueous solutions
    • Seperating Mixtures
      • A mixture is made up of two or more substances that are not chemically combined together.
        • Mixtures can be separated be physical means.
          • Filtration
          • Crystillisation
          • Simple distillation
          • Separation
          • Fractional distillation
          • Chromato-graphy
    • Fractional distillation and paper chrom-atography
      • Fractional distillation is an effective way of separating miscible liquids, using a fractionating column.
        • The separation is possible because of the different boiling points of the liquids in the mixture.
      • Paper chromato-graphy separates mixtures of substances dissolved in a solvent as they move up a piece of chromato-graphy paper.
        • The different substances are separated because of their different solubilities in the solvent used.
    • History of the atom
    • Ions, atoms and isotopes
    • Electronic structures
    • Atoms
      • All substances are made up of atoms.
        • An atom has a tiny nucleus at its centre, surrounded by electrons.
      • The periodic table lists all the chemical elements, with eight main groups each containing elements with similar chemical properties.
        • Elements contain only one type of atom.
          • Compounds contain more than one type of atom.
    • Structure of the atom

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