How does concentration affect reaction rate

A higher concentration of a catalyst will speed up the reaction rate.

increases reaction

Explanation:

the concentration of reactants generally increases the rate of reaction because more of the reacting molecules or ions are present to form the reaction products.

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.