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To know that a reaction occurs slowly or fast critical. Because if you know the reaction occurs much faster will find a way to keep and how to apply. And if it can cause a slow down in the level control can be used to advantage. On the other hand If you know the principal service which would have caused a slow yakhemi just find a way to cause more quickly, until the appropriate level. It will be so useful. To know the rate of reaction is important.-Chemical reactions that seen surveys in General and those reactions. Hurry rather quickly. Little slow or very slow side.-When the matches put on the air or in the container that contains the lowered oxygen at room temperature normal. The students thought the matches to light? Why

Knowing what kind of reaction occurs slowly or quickly, one is of paramount importance. If you know the reaction that occurs very early one. Will have to find a way to maintain and properly used. And it can cause a slow down in a controlled manner. It will be used to benefit the way, if that's a chemical reaction occurs slowly, one can find a way to make it faster and at a reasonable level. It will be used as well, so knowing the reaction rate is so important
- the survey found that a typical chemical reaction. And assess whether those reactions occur relatively fast speed gradually slow or very slow
- when the matches, put it in the air. Or dip into the container of oxygen at normal room temperature. Students think Matches are flammable or not, why not.

.Knowing that the reaction of delayed or how fast it is vital. Because if that's how fast reaction To find ways to maintain and how to use properly.It will be used to benefit. On the other hand, if you know what the completion of chemical ้หา method will cause delayed much faster to the appropriate level. It will be useful as well.- explore the chemical reactions seen in general. And the estimates of those reactions happen fast. Rather quickly, quite slow or very slow!- when the matches to be placed in the air. Or put in containers of oxygen at normal room temperature. Students think the match will fire or not. Why?