Unit cells.
They are the smallest group of atoms that take form of a crystal and can repeat in 3 dimensions.
Answer:
I doint understand that question resend it again
PH scale is used to determine how acidic or basic a solution is
pH can be calculated using the H⁺ ion concentration
pH = - log [H⁺]
and if pH is known we can find out the H⁺ ion concentration
[H⁺] = antilog(-pH)
[H⁺] = antilog(-8.95)
[H⁺] = 1.122 x 10⁻⁹ M
therefore hydrogen ion concentration is 1.122 x 10⁻⁹ M
The end result of increased molecular motion is that the object expands and takes up more space. {I don’t know if it’s right, I‘m just trying to help}
Phương trình hóa học: 2Mg+O2->2Mgo
