potassium
The alkali metals sodium, potassium, rubidium, and cesium ignite on contact with water.
The Rubidium valance shell is a radio active substance
they will ignite ( burst into flames )
The petrol combusts (burns) so it bursts into flames. So cO2 and heat are released. An example is in cars. In cars incomplete combustion occurs, this is when there is a limited supply of air available so no damage is done to the car.
When the inverted beaker is placed over the candle, It cuts off the oxygen supply. All flames need oxygen to continue burning.
Throw water on it. The logical answer.
I believe that you think to alkali metals (ex. sodium).
The alkali metals sodium, potassium, rubidium, and cesium ignite on contact with water.
The Rubidium valance shell is a radio active substance
A Phoenix
It was named after the Phoenix bird that bursts in to flames when it dies.
The Phoenix can rise from its own ashes.
A soft, light weight metal called sodium, which we never see. It bursts into flames in air and can even burn under water.
He bursts into flames and dies, then is reborn from the ashes.
Your car bursts into flames and tries to kill you with a spoon
chemical energy
A Phoenix is a bird that bursts into flames when it gets old. Out of the ashes it is reborn as a Phoenix chicken.