BMAT Chemistry

Clodagh Mullins
Mind Map by Clodagh Mullins, updated more than 1 year ago
Clodagh Mullins
Created by Clodagh Mullins about 6 years ago


GCSE A2 Chemistry Mind Map on BMAT Chemistry, created by Clodagh Mullins on 10/29/2015.

Resource summary

BMAT Chemistry
  1. Atoms
    1. Plum pudding vs Bohr
      1. Atomic Structure
        1. reactions to produce compounds
          1. ionic and covalent
          2. Volatility- liquid heated- fast moving surface materials overcome forces of attraction and evaporate- volatility is how easily it evaporates
            1. testing for ions
              1. flame test on positive metal ions
                1. Lithium- crimson
                  1. Sodium yellow
                    1. Potassium lilac
                      1. Calcium- red
                        1. Barium Green
                          1. Common Gas test
                            1. cl- bleach litmus paper
                              1. oxygen relights glowing splint
                                1. Hydrogen- squeaky pop
                                2. Negative Ions
                                  1. Acid + carbonate= carbon dioxide
                                    1. Halide- silver nitrate test
                                      1. add dilute HCL followed by barium chloride= white precipitate
                                3. Extraction of metals
                                  1. ore=enough metal to be economically viable
                                    1. Reduction with carbon- oxygen from ore is removed
                                      1. Reactivity series- if it is less reactive than carbon it can be extracted using it
                                      2. if it's more reactive it can be extracted using electrolysis
                                        1. Displacement


                                          • reactive metal add dissolved metal compound- reactive metal will replace the less reactive metal
                                          1. scrap iron can displace copper from a solution
                                        2. Organic Chemistry
                                          1. Fractional Distillation
                                            1. Alkanes
                                              1. Alkenes
                                                1. reactive c=c
                                                  1. Electrophilic Addition
                                                  2. Bromine water test
                                                    1. Addition polymers
                                                      1. HDPE- low temp, low pressure + catalyst
                                                        1. LDPE- high temp and pressure
                                                      2. Complete vs incomplete combustion
                                                        1. alcohols
                                                          1. solvents
                                                            1. fuels
                                                            2. Carboxylic Acids
                                                              1. React with carbonates
                                                            3. Classifying materials
                                                              1. bonding- ionic vs covalent
                                                                1. Isotopes
                                                                  1. Group 1
                                                                    1. Reactivity increases down the group
                                                                      1. Reaction with cold water produces hydrogen and a hydroxide
                                                                        1. Form ionic compounds with non metals
                                                                        2. Halogens
                                                                          1. Down the group- less reactive bc it's harder to gain an electron
                                                                            1. high mp/bp
                                                                              1. React with alkali metals to form salts
                                                                                1. Displacment
                                                                                  1. chlorine + sodium hydroxide > bleach + sodium chloride +water
                                                                                2. Transition Metals
                                                                                  1. good catalysts
                                                                                3. Calculations in chemistry
                                                                                  1. Relative atomic mass from mass spectrum
                                                                                    1. Empirical Formula
                                                                                      1. 1 mol of gas occupies 24 dm cubed
                                                                                        1. percentage yield
                                                                                        2. Chemical Change
                                                                                          1. Acids and Alkali
                                                                                            1. Neutralisation producing a salt and water
                                                                                              1. acids produce protons
                                                                                                1. Strong= ionise completely- weak acids= do not fully ionise


                                                                                                  • strong acid better electrical conductor
                                                                                                  1. Acids + metal= salt + Hydrogen
                                                                                                    1. Hydrochloric acid produces chloride salts/ sulfuric acids produce sulfate salts
                                                                                                      1. Metal oxides and Metal Hydroxides are Bases
                                                                                                        1. acid + metal carbonate > salt + carbon dioxide + water
                                                                                                          1. salts of carbonates and hydroxides are insoluble
                                                                                                        2. Energy Transfer
                                                                                                          1. Exothermic vs Endothermic
                                                                                                            1. reversible reactions
                                                                                                            2. Break bonds requires energy, make bonds releases energy
                                                                                                              1. calorimiter
                                                                                                                1. Q= MC delta T
                                                                                                                2. Equilibrium
                                                                                                                  1. Temp/pressure/conc
                                                                                                                    1. Haber process- comprimise


                                                                                                                      • iron catalyst
                                                                                                                3. Rates of Reaction
                                                                                                                  1. Temp, Conc, Catalyst , surface area
                                                                                                                    1. collision theory- increased collisions= increased rate of reaction
                                                                                                                    2. Reactant used (or product formed) over time
                                                                                                                    3. Electrolysis
                                                                                                                      1. splitting using electricity- +ive ions to cathode, -tive ions to anode
                                                                                                                        1. more reactive ions displace hydrogen and stay in the solution longer
                                                                                                                          1. electroplating- use electrolysis to coat the surface of a metal with another metal
                                                                                                                      2. Water
                                                                                                                        1. hard water
                                                                                                                          1. produces scum with soap and scale when heated
                                                                                                                            1. healthy teeth and bones and less heart disease
                                                                                                                              1. temporary hardness is removed by boiling
                                                                                                                                1. both removed by adding sodium carbonate and ion exchange columns
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