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 H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca 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

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

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

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

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

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

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

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

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

Elements Both iron and sulphur contain only one type of atom Sulphur

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

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

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

Mixture of iron and Sulphur

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

Iron Sulphide

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

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

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

Oxygen will relight the splint Testing for Oxygen Oxygen will relight the splint

Testing for Carbon Dioxide Carbon Dioxide will put out a flame

Testing for Carbon Dioxide Carbon Dioxide will put out a flame