Acompound was found to be soluble in water. it was also found that addition of acid to an aqueous solution of this compound resulted in the formation of carbon dioxide. which one of the following cations would form a precipitate when added to an aqueous solution of this compound?

a. nh4
b. k
c. cr
d. rb
e. na

Drive down any three characteristic of modern periodic table

Consider the reduction reactions and their equilibrium constants. cu+(aq)+e−↽−−⇀cu(s)pb2+(aq)+2e−↽−−⇀ pb(s)fe3+(aq)+3e−↽−−⇀fe(=6.2×108=4. 0×10−5=9.3×10−3 cu + ( aq ) + e − ↽ − − ⇀ cu ( s ) k =6.2× 10 8 pb 2 + ( aq ) +2 e − ↽ − − ⇀ pb ( s ) k =4.0× 10 − 5 fe 3 + ( aq ) +3 e − ↽ − − ⇀ fe ( s ) k =9.3× 10 − 3 arrange these ions from strongest to weakest oxidizing agent.

Which of these is an intensive property of a substance