The K sp of PbBr 2 is 6.60 × 10 − 6 . What is the molar solubility of PbBr 2 in pure water? molar solubility: M What is the molar solubility of PbBr 2 in 0.500 M KBr solution? molar solubility: M What is the molar solubility of PbBr 2 in a 0.500 M Pb ( NO 3 ) 2 solution?

Is there any options, for this

Ithink about 50 % of an original isotope's number of atoms remain

The reaction 2kalsi3o8 + 2(h+ + hco3-) + h2o  →  al2si2o5(oh)4 + 2k+ + 2hco3- + 4sio2 shows that feldspar kalsi3o8 is chemically altered by hydrolysis to form chalky-looking clay mineral kaolinite al2si2o5(oh)4. the chemical breakdown of potassium feldspar due to exposure to acidic water results to the mineral binding with the water molecule to become kaolinite with silica and potassium and bicarbonate ions in solution.

Tell me the answer choices and i would be able to answer. : )