Use the References to access important values if needed for this question. For each of the salts on the left, match the salts on the right that can be compared directly, using Ksp values, to estimate solubilities. (If more than one salt on the right can be directly compared, include all the relevant salts by writing your answer as a string of characters without punctuation, e.g, ABC.) 1. iron(II) hydroxide 2. lead sulfate Submit Answer iron (II) hydroxide Ksp = Write the expression for K in terms of the solubility, s, for each salt, when dissolved in water. Ksp A. PbCrO4 = Ca3(PO4)2 Ag₂SO3 lead sulfate D. E 303 Retry Entire Group 9 more group attempts remaining Note: Multiply out any number and put it first in the Ksp expression. Combine all exponents for s.

Chemical properties include (choose the best answer) Melting and boiling point Density Reactivity with other chemicals and molecules Solubility in various solvents

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Calcium hydride, CaH2, reacts with water to form hydrogen gas: CaH2(s) + 2 H2O (l) → Ca(OH)2(aq) + 2 H2(g) This reaction is sometimes used to inflate life rifts, weather balloons, and the like, when a simple, compact means of generating H2is desired. How many grams of CaH2are needed to generate 154 L of H2gas if the pressure of H2 is 825 torr at 21 °C?