What is the wavelength of a light of frequency 6.42 x 1014 Hz? O A. 598 nm
B. 467 nm
O C. 502 nm
D. 425 nm

the atomic mass is the bottom number on the element.

-steel jelly

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.

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