Unit 8.2: Classify Solubility Solutions Flashcards
1
Q
What group/family pairs to make “always soluble” compounds?
A
Alkali metals
2
Q
What polyatomic ions are ALWAYS soluble when paired with other ions?
A
NH4 +, NO3 -, CH3COO-
3
Q
In aqueous solutions, the solubility of most ionic substances (increases/decreases) when temperature increases.
A
Increases
4
Q
In solutions, the solubility of gases (increases/decreases) when temperature increases.
A
Decreases
5
Q
Do soluble compounds always conduct electricity?
A
No, only if they dissociate and form ions
6
Q
Do substances that are barely soluble conduct electricity?
A
Yes, as long as ions form the solution will conduct.
7
Q
The maximum amount of solute that will dissolve in a specific amount of solvent at a given temperature
A
Solubility
8
Q
True or False:
All ionic compounds dissolve in water
A
False
