Chem paper 1 topic 4 ( chemical changes )

• What do metal atoms form when they react with other substances?

  Positive ions
• How is the reactivity of a metal related to its tendency to form positive ions?

  A more reactive metal tends to form positive ions more easily
• What metals are included in the reactivity series?

  • Potassium
  • Sodium
  • Lithium
  • Calcium
  • Magnesium
  • Zinc
  • Iron
  • Copper
• What is the significance of the order of metals in the reactivity series?

  It indicates their reactivity based on reactions with water and dilute acids
• Which non-metals are often included in the reactivity series?

  Hydrogen and carbon
• What happens when a more reactive metal is present with a less reactive metal in a compound?

  The more reactive metal can displace the less reactive metal
• What should students be able to do regarding the reactions of specific metals with water or dilute acids?

  • Recall and describe the reactions of potassium, sodium, lithium, calcium, magnesium, zinc, iron, and copper
  • Place these metals in order of reactivity
• How does the reactivity of metals with water or dilute acids relate to their tendency to form positive ions?

  More reactive metals form positive ions more readily when reacting
• What can students deduce based on experimental results regarding metals?

  They can deduce an order of reactivity of metals
• What temperature conditions are the reactions of metals with water and acids limited to?

  Room temperature
• Are reactions with steam included in the study of metal reactions with water and acids?

  No, reactions with steam are not included