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| 1. |
Why a substance burn with flame or without a falme? |
| Answer» A substance burn with flame when it consists of gas and liquid in more amount. like a matchstick when we burn it we see that a browny liquid passed out from it, backward to flame but when we burn a high dense substance we see that it burn without flame .because ,it consists of liquid or gas in very low amount . Because of it ,the flame is not come out from it | |