The addition of which substance will decrease the solubility of agno3 in water? 1)0.1 m potassium chloride 2)0.1 m barium chloride 3)0.1 m sodium nitrate 4)0.1 m sodium carbonate

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

b. is the answer hoped i