Chemistry: C1 - Atomic Structure Combined Science AQA
- 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
- No new atoms are ever created or destroyed in a chemical reaction.
- You can include state symbols to give extra information in balanced symbol equations.
- s = solids
- l = liquids
- g = gases
- aq = aqueous solutions
- No new atoms are ever created or destroyed in a chemical reaction.
- 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
- Mixtures can be separated be physical means.
- A mixture is made up of two or more substances that are not chemically combined together.
- 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.
- Fractional distillation is an effective way of separating miscible liquids, using a fractionating column.
- 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.
- Elements contain only one type of atom.
- All substances are made up of atoms.
- Structure of the atom
- Chemical Equations
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