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Chemical reactions occur when reactants collide. For what reasons may a collision fail...

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codyjackson | Student, Grade 9 | Honors

Posted April 30, 2011 at 10:43 AM via web

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Chemical reactions occur when reactants collide. For what reasons may a collision fail to produce a chemical reaction?

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nessus | High School Teacher | (Level 2) Adjunct Educator

Posted July 4, 2011 at 11:06 AM (Answer #1)

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One of the postulates of collision theory of reactions is that the reacting species approach at the correct attitude. e.g for the reaction between monobromomethane (methyl bromide) and sodium hydroxide to make methanol the hydroxide ion has to approach the methyl bromide molecule from the side opposite the bromine atom for best chance of reaction occurring.

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pizzaboy95 | Student , Grade 11 | eNotes Newbie

Posted May 23, 2012 at 1:50 AM (Answer #2)

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- If the reactant does not have enough energy

-If the colliding molecules aren't oriented correctly 

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