How I can find the value of q1 and q2 in this formula?

Use algebra,
f/k = q1*q2/r^2
f/k * r^2 = q1*q2
And then solve for both q1and q2

This is what i found on google “according to the collision theory, the following criteria must be met in order for a chemical reaction to occur: molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. molecules must collide with the proper orientation.” i hope this information you.