POH = 14 - pH
pOH = -log [OH-]
When we have Avogadro's number with four significant figures 6.022 x 10^23
and we have also this number 2.055 is also with four significant figures so,
the number of atoms = Avogadro's number / 2.055
= 6.022 x 10^23 / 2.055
= 2.930 x 10^23
and we can see that the result is number with four significant figures
Atomic size gradually decreases from left to right across a period of elements.
An example of a physical change is the process of tempering steel to form a knife blade.
physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density.