. Classify each of the following formulas as wither (1) a binary ionic compound, (2) an ionic compound with polyatomic ion (s), (3) a binary covalent compound, (4) a binary acid, or (5) as oxyacid. Write the name that corresponds to each formula. a. HNO3 b. Ca (OH)2 c. (NH4) 2HPO4 d. Ni3P2 e. HI (aq) f. Li2O g. Br2O

The answer is not c

Answerhave membrane-bound organelles;

What is the question?

Answer is:     molar solubility of  yttrium fluorid is 4.23·10⁻⁶ m. balanced chemical reaction: yf₃(s)  → y³⁺(aq) + 3f⁻(aq). ksp = 8.62·10⁻²¹. ksp = [y³⁺]  · [f⁻]³.[y³⁺] = [yf₃] = s.[f⁻] = 3[yf₃] = 3s.ksp(yf₃)  = s  · (3s)³.8.62·10⁻²¹ = 27s⁴.s(yf₃)  =  ⁴√(8.62·10⁻²¹  ÷ 27).s(yf₃)  = 0.00000423 m.s(yf₃) = 4.23·10⁻⁶ m.