it under goes a physical change into ash, it also under goes a chemical change into smoke that's why while it burns there is black stuff floating up, and after there is gray stuff everywhere.
They go out once the gunpowder has burned up.
charcoal
To effectively burn wet wood, it should be dried out first to reduce moisture content. This can be done by storing the wood in a dry place for a few months or using a kiln to speed up the drying process. Once the wood is dry, it can be burned more efficiently and produce more heat.
It is a chemical change. The wood, once burned, can't be restored to its original composition
When burned for fuel, wood releases about 3,800 to 4,800 calories per pound.
wood We burned wood in the camp fire. The table is made of wood.
NO
All wood can be burned. Wood is largely cellulose, and cellulose is combustible. Sap, tar, or pitch in wood will also burn. Certainly we can treat wood to minimize its combustion potential, but all wood can be burned in a hot enough fire.
Charcoal?
When wood is burned, the carbon in the wood combines with oxygen in the air to form carbon dioxide, leaving behind black carbon residue known as charcoal. This is why the wood turns black when burned.
Wood can be burned without using a torch by using a match or lighter to ignite it. The heat from the flame will start the combustion process, causing the wood to burn.
Burning wood. When the wood is burned, it becomes black.