Convert 554 k/s into μk/ms in this problem all i need to know is what does the k is?

Which substance absorbs 58.16 kj of energy when 3.11 mol vaporizes? a)ch4 b)h2s c)co2 d)nacl

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

Which formula can be used to calculate the molar mass of hydrogen peroxide