Reactions Of Group 2 Elements With Water - Redox Flashcards
1
Q
Group elements react with cold liquid water to form what
A
Hydroxides + hydrogen gas
2
Q
pH for metal hydroxides
A
Weak alkalines have pH between 8 and 11
3
Q
General equation for metal with water
A
Metal + water ➡️ metal hydroxide + hydrogen
4
Q
Example with Barium reacting with water & change in oxidation number
A
Ba + 2H2O ➡️ Ba(OH)2 + H2
0. +1 -2. +2. 0
Ba - oxidised - 0 to +2
H - reduced - +1 to 0
5
Q
What would you see in group 2 elements with water
A
- Fizzing/ bubbling
- solid disappears
