Memory Anchor:

• Super Challenge:

  Stretch:

  Challenge:

Key Questions:

1. When an acid (such as hydrochloric acid) reacts with an alkali or a base (such as sodium hydroxide), what will the two products be?
   • When an acid reacts with an alkali or base it produces salts and water.
2. What products are made when an acid reacts with a metal carbonate?
   • Acids are neutralised by metal carbonates to produce salts, water and carbon dioxide.
3. What factors affect the type of salt produced in a reaction between an acid and a base or alkali?
   • The particular salt produced in any reaction between an acid and a base or alkali depends on: - the acid used (hydrochloric acid produces chlorides, nitric acid produces nitrates, sulfuric acid produces sulfates) - the positive ions in the base, alkali or carbonate.
4. What two products would be made when zinc oxide reacts with dilute hydrochloric acid?
   • The two products that would be made when zinc oxide reacts with dilute hydrochloric acid are zinc chloride and water.