How quickly would groundwater flow through rock high porosity and high permeability?

What are the concentrations of hydroxide and hydronium ions in a solution with a ph of 10.2?

Asa choose the correct set of reaction coefficients to properly balance the following chemical equation according to the law of conservation of mass: __s8 + __o2 ==> __so2 1, 1, 8 1, 8, 1 1, 8, 8 8, 1, 1

How do scientists think that gravity affected the formation of our solar system?