1)
Why does teach about gold and silver Kelim separately?
1.
Malbim: There were different weights for gold Kelim and for silver Kelim 1 .
1
E.g. there were gold buckets for blood, and also of silver (Pesachim 5:5). If 70 was the proper weight for a silver bucket (see Bamidbar 4:13), a different weight is proper for gold. (PF)
