Which of the following reactions shows a double replacement reaction for cabr2 reacting with na2s?

cabr2 + 2na2s -> 2nasbr + ca

cabr2 + o2 + na2s -> cao2 + 2nabr + h2s

cabr2 + na2s -> 2nabr + cas

cabr2 + na2s -> 2casbr +2na

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

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

ok whats the question if not i cannot you i need question and need a thing to answer