physical science quiz 7D 🍒

enough energy must be present, reactant particles must be aligned properly, and reactant particles must collide.

The parts of the collision model for affecting reaction rates are

Inhibitor

decreases the rate of a reaction

Dividing a large reactant into smaller pieces

would most likely increase the reaction rate of a chemical reaction.

When a system reaches chemical equilibrium, the forward and reverse reactions happen at the same time. (t/f)

true

The system in equilibrium given by the equation 2 Na + 2 H2O ⇌ 2 NaOH + H2 being an exothermic forward reaction would (1) Adding water would increase the number of reactants, causing the forward reaction to increase and producing more sodium hydroxide and hydrogen. (2) Decreasing the temperature would cause the reaction to proceed in the exothermic direction (the forward reaction).

remember

According to Le Châtelier's principle, systems in equilibrium will adjust its equilibrium state in such a way as to increase the effect of any changes made to the system.

false; reduce the effect of any changes made to the system.