trends in properties of oxides Flashcards
1
Q
if metal oxides dissolve in water
A
form alkaline solutions
as they form metal hydroxides
eg) sodium oxide reacts to form nahydroxide
Na2 (s) + H2O = 2NaOH (aq)
2
Q
if non metal oxides dissolve in water
A
form acidic solutions
as they form acids
eg) sulfer dioxide reacts to form sulphurous acid
SO2 (s) + H2O = H2SO3 (aq)
3
Q
metallic elements tend to form (why) …
A
solids
high melting point oxides
metal oxides have GIL structure
4
Q
non metal elements form (why) …
A
gaseous
low meeting point oxides
non metals oxides have simple molecular structure
