2. What is wind? The movement of water deep in the ocean
The movement of air due to pollution differences
The movement of air due to pressure differences
The movement of water due to pressure differences

1.solid

2.carbon dioxide

3.helium

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l