2007-11-30 05:26:24 · 5 answers · asked by bfly 3 in Science & Mathematics ➔ Chemistry
A flame is an exothermic, self-sustaining, oxidizing chemical reaction producing energy and glowing hot matter, of which a very small portion is plasma. It consists of reacting gases and solids emitting visible and infrared light, the frequency spectrum of which depends on the chemical composition of the burning elements and intermediate reaction products.
2007-11-30 05:32:19 · answer #1 · answered by Anonymous · 3⤊ 1⤋
Excellent answer from monkeypie.
Basically fire needs 3 factors, heat, fuel and oxygen.
Strike a match, the red bit is the accelerant, it provides the initial heat when stroked across the sandpaper. This heat warms the wood to its ignition point and the oxygen keeps it burning.
When you strike the match, look at it closely and you will see there is a small gap between the wood and the flame, this is the gas from the heated wood that is providing fuel to the flame.
2007-11-30 13:42:20 · answer #2 · answered by firebobby 7 · 1⤊ 1⤋
When materials burn, which is a fuel reacting rapidly with oxygen, the products of combustion are gases (water vapor, CO2, etc.) which have been heated to a high temperature by the energy released by the combustion reaction. The temperature of the gases is high enough that they become incandescent; that is, they give off visible light. The color of the flame is determined by the temperature of the hot gases and also may be affected by elemental components of the flame.
2007-11-30 13:40:30 · answer #3 · answered by m dow 2 · 1⤊ 1⤋
Hi
A flame is free radicals.
It's as simple as that.
2007-12-02 06:25:53 · answer #4 · answered by Anonymous · 0⤊ 0⤋
fire
2007-11-30 13:30:52 · answer #5 · answered by Kim 6 · 0⤊ 3⤋