Science

Genetics – Science Review

I did well in the test, however I need to improve on test crosses and finding evidence in diagrams. Also I think I should revise mutation and DNA structure/ gene makeup .etc.

– Seth

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Acid and Bases

Relate number of protons, neutrons and electrons in an atom or monatomic ion to the atomic number, mass number and charge
Describe the electron arrangement of atoms or monatomic ion of the first 20 elements
Relate the charge of monatomic ions to position of the element in the periodic table (groups 1,2,16 and 17 only)
Describe the formation of ions
Name and write the formulae of ionic compounds (salts) using an ion table
Explain that for a reaction to occur particles must:
– collide
– collide with sufficient energy
– collide the right way.
Define rate of reaction.
Plan a fair test investigation
Carry out an investigation; collect, record and process data
Interpret processed data and discuss their findings.
Describe how rates of reactions are affected by:
change in concentration
temperature
a catalyst
surface area.
Explain changes in reaction rate in terms of particle movement and collisions.
Describe the pH scale
Explain the effects of acids and bases on Litmus and Universal Indicator
Describe that acids release hydrogen ions in water
Describe carbon dioxide production when acids react with metal carbonates and hydrogen carbonates.
Name the products and write word or chemical equations for reactions of acids (hydrochloric, sulphuric and nitric acids)) with bases (metal oxides, hydroxides, carbonates and hydrogen carbonates).
Describe the uses of acid/base reactions for neutralisation, carbon dioxide formation and salt formation.

Vocabulary List
Protons Neutrons Electrons
Atomic Number Mass Number Electron Arrangement
Monatomic Ion Formulae
Salts Collision Theory Rate of Reaction
Fair Test pH Litmus
Universal Indicator Hydrogen Ions Carbonates
Neutralisation