Neutralisation


 Today in science, we are going to observe a neutralisation reaction between acid and base. We are going to use Universal Indicators to determine if something is an acid or a base; we can tell if its an acid or a base if it changes colour. How are we going to know what colour is an acid or a base? That is when the pH scale comes in. The ph scale shows the contrast of acids and bases from red, green to blue. 

A neutralisation reaction is when you mix acids and bases, it makes a reaction and turns neutral.

• Hydrochloric Acid - what is an acid?

          An acid is represented by the colour red. Most citric fruits have acid. Acids have two main types: organic and mineral acids.

• Sodium Hydroxide - what is a base? 

          The base is represented by the colour blue and is used in a lot of cleaning products.

Explanation:

We made the Neutral solution by first adding NaOH(base) into the test tube. Then we 2 drops of universal indicator and then added drops of HCI(acid). We mixed it together and ended up with a green solution which is neutral on the ph scale. We created bases by adding NaOH and universal indicator together and turned blue then made an acidic solution by adding HCI and universal indicator together.