How has the expansion of the universe affected the cosmic microwave background radiation? A. It has caused it to red-shift.
B. It has caused it to blue shift.
C. It has caused it to cool.
D. It has caused it to heat up.

you need to have a picture of the atom that way we can answer it

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

here are some of the ways in which chemical and nuclear reactions differ.

explanation: