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S1 Compounds and Mixtures

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  • What does this picture show?
    A mixture of elements.
  • What name is given to Group 1 of the Periodic Table?
    Alkali metals
  • Name the three particles that make up atoms.
    Protons, neutrons and electrons.
  • How does a compound differ from a mixture?
    Compounds have atoms bonded together, mixtures are not bonded together.
  • Melting sugar: a physical or chemical change?
    Physical!
  • When sodium, sulfur and oxygen react together, what compound is produced?
    Sodium sulfate
  • What does this picture show?
    A mixture of elements and compounds.
  • How can I break down copper chloride into its elements, copper and chlorine?
    Decomposition / electrolysis
  • Complete the equation: Aluminium  +  ______ --> aluminium iodide
    Iodine
  • When calcium reacts with fluorine, what compound is made?
    Calcium fluoride
  • What word describes the simplest type of substance and only contains only one kind of atom?
    Element
  • What does this picture show?
    A mixture of compounds.
  • State one difference between a metal and a non-metal.
    Any appropriate answer.
  • When something burns, it is reacting with what element?
    Oxygen
  • Give TWO examples of a chemical change.
    Any appropriate answer (wood burning, egg frying, iron rusting, explosion, etc)
  • What elements are present in calcium carbonate?
    Calcium, carbon and oxygen.
  • Water is produced when hydrogen and oxygen react. Write this word equation on the board.
    Hydrogen + oxygen --> Water
  • Is indium a metal or a non-metal?
    Metal
  • State two properties of non-metals.
    Brittle, non-conductor of heat and/or electricity, dull, etc
  • What does this picture show?
    An element.
  • What two things can I react together to produce lead nitride?
    Lead and nitrogen
  • Give TWO examples of a physical change.
    Any appropriate answer (glass breaking, chopping wood, ripping paper, crushing a can).