According to the collision theory, all collisions do not lead to reaction. Which choice gives both reasons why not all collisions between reactant molecules lead to reaction?
1. The total energy of two colliding molecules is less than some minimum amount of energy.
2. Molecules cannot react with each other unless a catalyst is present
3. Molecules that are improperly oriented during collision will not react.
4. Solids cannot react with gases.
A. 1 and 2
B. 1 and 3
C. 1 and 4
D. 2 and 3
E. 3 and 4
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