BTEC Applied Science Year 11 into 12 - PowerPoint Presentation

1. BTECApplied ScienceYear 11 into 12Unit 1: Chemistry workbookName:

2. Elements, compounds, mixturesKey wordElement  Compound Mixture Molecule DefinitionAtoms of different elements chemically bondedSubstance with only one sort of atomA small group of atoms bonded togetherDifferent elements or compounds mixed but not joinedsubstanceelement / mixture / compound?A pure gold coinPure waterSalty waterAir

3. Hazard Symbolssymbolnamewhat it meanssubstanceWhich hazard symbol?Dilute hydrochloric acidConcentrated sulfuric acidDilute sodium hydroxideHydrogen gasDilute nitric acid

4. Acids, bases and pHKey wordAcid  Base Alkali DefinitionA base that dissolves in water and has pH greater than 7A substance with a pH less than 7 and provides hydrogen ions in waterA substance that neutralises acidsacid nameformulahydrochloric acidsulfuric acidnitric acidbase nameformulasodium hydroxidecopper oxidezinc oxidecopper carbonatecalcium carbonatesodium carbonategas nameformulahydrogencarbon dioxide

5. Acids with alkalis and metal oxidessulfate / nitrate / salt / chloridewhen acids react they always make a _________hydrochloric acid makes salts called __________sulfuric acid makes salts called __________nitric acid makes salts called ___________Salt namesSalts have a first name and a second name:The first name comes from :The second name comes from:acid + alkali (or metal oxide)  _________ + ______________Complete the following word equations:Nitric acid + copper oxide  __________ __________ + waterHydrochloric acid + sodium hydroxide  _________ __________ + _____________Sulfuric acid + potassium oxide  _________ _________ + _____________________________ + ________________  lithium chloride + water_____________ + ________________  sodium nitrate + __________________    what is the name of the salt made?copper oxide with sulfuric acid makes:sodium hydroxide with nitric acid makes:zinc oxide with hydrochloric acid makes:sodium hydroxide with sulfuric acid makes:

6. Acids with metals and testing for hydrogencomplete these word equations:magnesium + hydrochloric acid  m________ c_________ + h________________calcium + sulfuric acid  c________ s__________ + ________________zinc + hydrochloric acid  ________ __________ + ________________tin + sulfuric acid  ________ ___________ + ________________metal + acid  _________ + ______________Need to test for hydrogen? Add a burning splint. You will hear a _ _ _ soundthe famous hydrogen gas test!

7. Acids with metal carbonates and testing for carbon dioxidecomplete these word equations:sodium carbonate + hydrochloric acid  s________ c________ + water + c________ d________calcium carbonate + sulfuric acid  c________ s__________ + ________ + c________ d________copper carbonate + nitric acid  ________ __________ + ___________ + __________ __________calcium carbonate + sulfuric acid  _______ _________ + ___________ + __________ __________metal carbonate + acid  ______ + ________ + ________ ________the famous limewater test!when you bubble carbon dioxide through limewater it turns _______

8. Uses of neutralisation1. indigestion tablets3. Reducing acidity of lakes2. Reducing acidity of soilskey words:neutralise weakbasecalcium carbonateThe stomach makes acid. This helps to break down food (digest) and kill bacteria.Indigestion is caused by too much acid in the stomach.Indigestion tablets contain a ______. They ____________ the extra acid to make the person feel better.It is important a ______ base is used so it is safe to consume.An example is _______ _________.Acidic soil is a problem because:Farmers get rid of the acid by:This changes the pH from __ to __.Acidic rain is a problem because:Scientists get rid of the acid by:An example equation is:calcium + sulfuric carbonate acid

9. Neutralisation exam question

10. The periodic tablelabel:groupsperiodsmetalsnon-metalskey

11. Periodic table exam question

12. Structure of the atomlabel the diagram with:proton neutron electron nucleus electron shell (energy level)How big is the nucleus compared to the whole atom?(If the whole atom was a football stadium, the nucleus would be… )particlein the nucleus or on a shell?chargemassprotonneutronelectron

13. Atoms exam question

14. Atomic number and mass numberKey wordatomic number  mass number electrons number of neutrons This is the _ _ _ _ _ _ for oxygen.The mass number is 16. This tells you how many protons and n_ _ _ _ _ _ _ the atom has.The atomic number, is the number of _ _ _ _ _ _ _ an atom has.You can work out the number of neutrons by taking the atomic number away from the _ _ _ _ number.Missing words:MassNeutronsProtonsSymbolDefinitionthe number of protons AND neutronsthe number of protonsmass number ̶ atomic numberthe number of these negative particles matches the number of positive protonselementAtomic numberMass numberNumber of protonsNumber of electronsNumber of neutronsHydrogen HHelium HeLithium LiBoron BNitrogen N________

15. Electron shellsThe first shell fits a maximum of __ electronsThe second shell fits a maximum of __ electronsThe third shell fits a maximum of __ electronsThe connection between group number and the number of electrons on the outside shell is:

16. Electron shells exam question

17. IsotopesAn isotope is an atom with the SAME number of ______________________ but a DIFFERENT number of __________________.fill in the tablewhy are they isotopes?number of protonsnumber of neutronsRelative Atomic Mass is the ___________ mass of the different isotopes taking into account their _______________ (how much of them). abundanceaverageHow to calculate it:RAM = % x mass add together 100 for each isotopeRAM = 98.9 x 12 + 1.1 x 13 100 100 = + = 12.011show how to get 10.8

18.