Potassium is one of the most unpredictable elements, a soft metal that is essential to life.
- Potassium is a soft metal.
- In our bodies potassium compounds help keep us healthy.
- Potassium compounds are vital for plant growth.
- Potassium oxidises rapidly in air and reacts explosively with water.
Potassium is a soft metal that can be cut with a knife.
It is silvery in colour, but oxidises rapidly on contact with air.
On contact with water, potassium reacts explosively, making hydrogen gas and a strong alkaline solution of potassium hydroxide.
The reaction is strongly exothermic, releasing heat, and so ...
Please log in to view and download the complete transcript.