Question

Acid is added to a beaker containing crushed marble. What effect does stirring this mixture have on the system?

the surface area of the particles increases
the number of particle collisions increases
the energy of the collisions increases

Answer 1

See below.

Step-by-step explanation:

Stirring increases the number of particle collisions, thus speeding up the reaction.

Answer 2

Answer: the surface area of the particles increases the number of the particle collisions

Step-by-step explanation: