What is the hydroxide ion concentration in a water solution that has a hydronium ion concentration of 5.36*10-8 M?

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?

The element that has the greatest electronegativity is