unit 4 reactivity seris

• What should you be able to do by the end of the video?

  Use reactions between metals and water and acids to construct a reactivity series
• What happens when metals react in terms of electrons?

  Metals lose electrons and form positive ions
• What is the reaction of potassium with water?

  It produces potassium hydroxide and hydrogen gas
• How does sodium's reaction with water compare to potassium's?

  Sodium reacts less rapidly with water than potassium
• What does lithium produce when it reacts with water?

  Lithium hydroxide and hydrogen gas
• How does calcium's reaction with water compare to potassium, sodium, and lithium?

  Calcium reacts fairly rapidly but not as rapidly as potassium, sodium, or lithium
• What trend is observed in the reactivity of metals with water as you move down the list?

  Metals react less rapidly with water as you move down the list
• Which metals do not react with water at room temperature?

  Magnesium, zinc, iron, and copper
• Why can't we use water to compare the reactivity of magnesium, zinc, iron, and copper?

  Because they do not react with water
• What happens when calcium reacts with dilute acid?

  Calcium reacts extremely vigorously with dilute acid
• How does magnesium's reaction with dilute acid compare to zinc's?

  Magnesium reacts more rapidly than zinc with dilute acid
• What is the reactivity of copper with dilute acid?

  Copper does not react with dilute acid
• What is the reactivity series for metals based on their reactions with water and acids?

  Potassium, sodium, lithium, calcium, magnesium, zinc, iron, copper
• Which two non-metals are usually included in the reactivity series?

  Carbon and hydrogen
• What is the key fact about how metals react in terms of electron loss?

  Metals lose electrons to form positive ions
• How does the position of a metal in the reactivity series relate to its ability to form positive ions?

  Metals at the top readily form positive ions, while those at the bottom are less likely to
• What should you be able to do with the reactivity series in future videos?

  Use it to explain the displacement of metals
• What is the process of constructing a reactivity series based on metal reactions?

  • React metals with water to observe reactivity
  • React metals with dilute acids for further comparison
  • Rank metals based on the speed of their reactions
  • Include non-metals like carbon and hydrogen for context
• What are the key points about the reactivity of metals with water and acids?

  • Potassium, sodium, and lithium react vigorously with water
  • Calcium reacts fairly rapidly with water
  • Magnesium, zinc, iron, and copper do not react with water
  • Calcium reacts vigorously with dilute acid, while copper does not react