Please I need urgent help Naturally occurring gallium consists of two
3. Ga and Ga with relative abundance
of 60 % and 40 % respectively. If their masses are
68.93 amu and 70.92 amu, what is the average
mass of the gallium atom?

it's all four options.

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

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