Answer:
2h+02=h20
Explanation:
2 in front of h on left side
2 in front of h on right side
<span>Answer:
Zn(2+) + 2e(-) -------> Zn
1 mole of Zn is deposited by 2F of electricity ...
so 48.9 mole of Zn will be deposited by 48.9 X 2F = 97.8 F of electricity...
as 1F = 96500 C
so 97.8 F = 97.8 X 96500 = 9437700 C of electricity...</span>
Beryllium, Magnesium, Calcium....etc have two valence electrons
Because it's protected from air because air makes it turn brown.