You will need:
- Baking soda (= alkali)
- Vinegar (= acid)
- 1 empty, clean bottle
- 1 spoon
- 1 balloon
What to do:
- Fill the bottle about one third with vinegar (your acid).
- Use the spoon to fill the balloon with baking soda (your alkali). You might need another person to help you and hold the balloon open.
- Put the opening of the balloon over the opening of the bottle. (See image above.)
- Now tip the baking soda from the balloon into the bottle.
- A neutralization reaction will take place where the acid and alkali react to form the products salt, water and carbon dioxide. All three products are neutral substances. Observe what happens.
- Which signs do you see that tell you a chemical reaction is happening?
- What happens generally in a neutralization reaction?
- Which two products are formed in the neutralization reaction?
- Which colour would the following have when adding universal indicator? A) Vinegar B) Baking soda C) The products after the reaction
You can watch this experiment on YouTube: