Neutralisation LO: Describe how acids and alkalis can cancel each other out Unscramble these words: Kliaal Telspraic Unltare What should you do if you get stung by a bee?!

Neautralisation This is the process where you make a solution neutral (neither acidic or alkaline). For example: Bee stings are acidic. They feel better is you rub toothpaste on them. Toothpaste is an alkaline and therefore neutralises the acidic sting.

What do you get when they join up? Neutralisation Neutralisation is when an acid and an alkali cancel each other out and the solution becomes neutral. All acids contain hydrogen (H) particles. All alkalis contain hydroxide (HO) particles. What do you get when they join up?

Neutralisation When an acid and an alkali join up you get HOH, which we write as water (H2O). Neutralisation happens when you mix the right amounts of acidic and alkali solutions together. Neutral solutions have a pH of 7.

Useful reactions Explain what Milk of Magnesia is and why it is so useful.

Activity Answer questions 1-8 on page 74/5.