Find the enthalpy of hydration for an iodide ion in the process Rbl - Rb+ +|-. Use Hsol= -Hlat+Hhydr. Hsol = 31.0 kJ/mol
Hlat = -630.0 kJ/mol
Hhydr of Rb+ = -315.0 kJ/mol

-661.0 kJ/mol
-661 kJ/mol
-284.0 kJ/mol
-284 kJ/mol

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 4.20 mol fe and 6.70 mol nio(oh) react?

Why is it incorrect to balance a chemical equation by changing the subscripts? explain.