Solubility Rule Caveats

Question 1

Common acids: water-soluble

Answer 1

H2S (hydrosulfuric acid), H2SO3 (sulfurous acid), H2CO3 (carbonic acid), H2C2O4 (oxalic acid), H3PO4 (phosphoric acid)

Question 2

Sulfurous acid

Answer 2

H2SO3(aq) - decomposes to SO2(g) and H2O (l)

Question 3

Carbonic acid

Answer 3

H2CO3(aq) - decomposes to CO2(g) and H2O(l)

Question 4

Ammonium hydroxide

Answer 4

NH4OH (aq) - decomposes to NH3(g) and H2O(l)

Question 5

Oxide Compounds

Answer 5

O2- is too strong to a base to survive in aqueous solution. O2-(aq) + HOH(l) -> 2 OH-(aq)