1. Reactions of Acids

2. 3 Types of chemical reactions of acids are:
Acid + Metal -> Salt + Hydrogen
Acid + Carbonate -> Salt + Carbon dioxide + Water
Acid + Base -> Salt + Water

3. Salts are ‘ionic’ compounds made up of 2 parts:
The positive ions (taken from the metal on the metal part of the carbonate base).
i.e. Sodium Na+
Magnesium Mg
Potassium K+

4. Negative ions (From the acids)
i.e. Hydrochloric HCl
Nitric HNO3
Sulphuric H2SO4
Salt Names: Remember this form “ions”-These are two words made up of the blend of the positive and negative ions.
Eg. Sodium Sulphate NaS04

5. How do we do this?
Salt Formula: These are obtained by combining the ion formulae and then balancing their charges.

6. For example:
Na2 SO4
2Na x SO4=
2+ & =
Charges Balance

7. Other reactions
Besides the main three: metals, carbonates and acid + base
We know acids cause acid rain
Are important to remember with pools and chlorine
BUT they also affect our stomach

8. Acids and your stomach Acid in your stomach helps break down food
Too much can cause issues
Pain
Ulcers
Etc.
Page 12 booklet

9. antacids Things that neutralise the stomach acids
-how many can we list
Read page 13 booklet and page 78 text SCI FILE
DO THE QUESTIONS ON THE PAGE
MAY DO the prac pg 84
- evaluating antacids