No, many are not. Especially those, such as carbon dioxide and water, that are products of combustion.
Combustible substance : Substances that burn easily or catch fire easily are called combustible substances. Paper, clothes, wood, LPG are all combustible substances. Without these substances, a fire cannot be started.
The substances that can react with oxygen and give out heat and light i.e., undergo combustion are called combustible substances.
Substances which undergoes burning is combustible substances. eg: paper ,cloth , wood substances which doesnt undergoes burning is non_combustible substances. eg: stone, bricks soil ,water. So, paper is combustible .
Another term is flammable.
Something that burns is called combustible Substances that burns in air or oxygen to produce heat and light are called combustible substances
Cobustible substances can catch on fire but non-combustible substances are inflammabe
No, not all substances are combustible. Combustibility is determined by a substance's chemical composition and properties. Some materials may be non-combustible or require extreme conditions to ignite and burn.
Combustible means capable of catching fire and burning easily. Substances that are combustible can ignite and sustain combustion in the presence of oxygen.
Combustible fabrics can catch fire and combust, unlike the latter.
There are some simple requirments for something to be a convenient fuel - it must be abundant, easily collected and transported, cheap and ideally have a high calorific value per unit volume. Actually the question asked is wrong. Combustible subs. = Combustible materials all combustible subs./combustible materials are fuel but all fuel are not combustible subs/combustible material because fuel can also be an incombustible material/incombustible subs.
Combustible can be used as an adjective and a noun. Adjective: Gas vapors are combustible. Noun: Don't store combustibles in the house.
i think it is not a combustible substance because it doesn't produce heat. ******************************************* No, examples of combustible substances are wood, paper, petrol, flour dust, etc. Iron will never burst into flames, though it will melt into a liquid if heated enough.