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S2 SCIENCE CHEMICAL REACTIONS

S2 SCIENCE CHEMICAL REACTIONS. REVISION. An Element. A simple type of substance that can’t be broken down into other substances. A substance that contains only one type of atom. Elements are listed on the periodic table. The Periodic Table. Solids, Liquids & Gases. H. He. Li. Be. B.

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S2 SCIENCE CHEMICAL REACTIONS

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  1. S2 SCIENCECHEMICAL REACTIONS REVISION

  2. An Element • A simple type of substance that can’t be broken down into other substances. • A substance that contains only one type of atom. • Elements are listed on the periodic table

  3. The Periodic Table

  4. Solids, Liquids & Gases H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac

  5. Q1. Metal or non-metal? H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac

  6. Q3. Metal or non-metal? H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac

  7. Q4. Metal or non-metal? H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac

  8. Q5. Solid, liquid or gas? H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac

  9. Q6. Solid, liquid or gas? H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac

  10. Q7. Solid, liquid or gas? H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac

  11. Q9. Solid, liquid or gas? H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac

  12. Elements • Both iron and sulphur contain only one type of atom Sulphur Iron

  13. Acid + Metal Hydrogen + Salt What is a Chemical Change? In a chemical change, a new substance is made. This is an irreversible process. Reactants Products

  14. How to spot a chemical reaction When substances are mixed, a chemical change has taken place if… • Bubbles are given off • Mixture warms up or cools down • An original substance disappears or a new substance appears • A colour change occurs

  15. A Mixture • A substance that contains more than one type of atom that are not chemically bonded (joined). • A mixture can be easily separated.

  16. Mixture of iron and Sulphur

  17. A Compound • A substance that contains more than one type of atom chemically bonded together. • Compounds are formed when elements react together • Compounds can not be easily separated

  18. Iron Sulphide

  19. “POP” Testing for Hydrogen Hydrogen is a gas that burns with a squeaky pop!

  20. Testing for Oxygen Glowing splint Place a glowing splint in the gas

  21. Testing for Oxygen Glowing splint Place a glowing splint in the gas

  22. Testing for Oxygen Oxygen will relight the splint

  23. Testing for Carbon Dioxide Carbon Dioxide will put out a flame

  24. Testing for Carbon Dioxide Carbon Dioxide will put out a flame

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