Answer: Electrons
Explanation:The electron itself is small but it takes space as much as an atom by circling around the nucleus.
1st find the pOH = 14 - 4.75 = 9.25
then do 10^-9.25 = 5.62x10^-10 OH- concentration
Answer: pH = 14
Explanation: Please see the attachments below
Iron filings can be attracted by the magnet whereas salt can not. So the mixture can be separated by a magnet
your answer will be :
B. <u>Na has a lower</u> <u>electronegativity than H</u>
because Na belongs to alkali metals which are least electronegative (most electro positive) but hydrogen is a non metal, it has higher electronegativity as compared to metals like Sodium (Na).