Find the enthalpy of hydration for an iodide ion in the process Rbl > Rb+ +|-. Use AHsol = - Hat+ Hnyde AHsol = 31.0 kJ/mol
AHiat = -630.0 kJ/mol
AHhydr of Rb+= -315.0 kJ/mol
--661.0 kJ/mol
0-661 kJ/mol
–284.0 kJ/mol
0-284 kJ/mol

How is 0.00235 expressed in proper scientific notation? a. 2.35 × 10-3 b. 0.235 × 10-2 c. 2.35 d. 2.35 × 103

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.