List three examples of a selectively permeable material or item

Consider the following system at equilibrium. caco3(s) ca2+(aq) + co32–(aq) the addition of which compound will cause a shift in equilibrium because of a common ion effect? ccl4 co2 cuso4 na2co3

The clouds are grey and ground is wet. a quantitative b qualitative

Describe the interaction that occurs between two objects with the same electrical charge.