Olivia noticed that the pH of her garden soil decreased after it rained. Did her garden soil become more acidic or less acidic

It's potassium i believe

What are the activitys?   sorry if this took your points : (

Answer:             1.0  × 10⁻⁵ msolution:                     as we know ph is given as,                                    ph  = -log [h⁺]and,                                    [h⁺]  =  10^-ph    (1)putting value of ph in eq. 1,                                    [h⁺]  =  10⁻⁵                                    [h⁺]  =  1.0  × 10⁻⁵ m

Search it on google it will give u the exact answer am pretty sure