Answer:
hydrogen and oxygen to form water
C because the sodium (cation) bonds with the sulphate (anion) and then chloride (anion) and hydrogen (acting as a cation) bond together
This disorder is inherited through DNA because there is a lack of pigmentation in the skin.
Not sure, is it <span>:
</span>B.
<span> 1.9 3 1027 NiCl2
formula units</span>