CONCLUSION

Non metals burn in Oxygen gas to form Oxides which turn moist blue litmus red. Such Oxides are said to be acidic.

Acidic Oxides can be defined as an Oxide which dissolves in water to form acidic solutions.

Some non metal Oxides are neutral and have no effect on moist red and blue litmus. For example Carbon (II) Oxide and water.

Metals burn in Oxygen gas to form Oxides which turn red litmus paper blue. Such Oxides are said to be Basic. Oxides of reactive metals such as Sodium, potassium, Magnesium and Calcium form soluble Oxides which turn red litmus blue. A soluble base is called an alkali.

Many metals burn in Oxygen at different rates.Metals burn in Oxygen faster than in air because air is made up of other constituents such as Nitrogen, Carbon (IV) oxide which do not support burning.