Question

9. What happens on the molecular level when you increase the concentration of the reactants involved in the reaction? (1 point)

Othe reactant particles' speed increases so there are more collisions and increase force

Omore particles in solution means more possible collisions between reactants

having particles closer makes the reaction happen slower but way more carefully

Othe hotter the system is, the better the molecules can hold their orientation

Answer 1

"more particles in solution means more possible collisions between reactants"

Explanation: increasing concentration raises the number of reactant particles per unit volume, so collision frequency increases and the reaction rate typically increases (per collision theory). The activation energy and molecular speeds don't necessarily change.