volume_mute
Will a double-replacement reaction occur?
publish date: 2024/01/09 15:38:54.713824 UTC
volume_muteCa(NO3)2 + KBr → ?
Yes
No
Correct Answer
No
Explanation
According to the solubility rules, both Ca(NO3)2 and KBr are soluble. Now we consider what the double-replacement products would be by switching the cations (or the anions)—namely, CaBr2 and KNO3. However, the solubility rules predict that these two substances would also be soluble, so no precipitate would form. Thus, we predict no reaction in this case.
| These compounds generally dissolve in water (are soluble): | Exceptions: |
|---|---|
| All compounds of Li+, Na+, K+, Rb+, Cs+, and NH4+ | None |
| All compounds of NO3- and C2H3O2- | None |
| Compounds of Cl-, Br-, I- | Ag+, Hg22+, Pb2+ |
| Compounds of SO42 | Hg22+, Pb2+, Sr2+, Ba2+ |
| These compounds generally do not dissolve in water (are insoluble): | Exceptions: |
|---|---|
| Compounds of CO32- and PO43- | Compounds of Li+, Na+, K+, Rb+, Cs+, and NH4+ |
| Compounds of OH- | Compounds of Li+, Na+, K+, Rb+, Cs+, NH4+, Sr2+, and Ba2+ |
Reference
Beginning Chemistry v. 1.0