Hi Can you tell from a wallet address what network it is on?
Is there a difference between the Ethereum Network and the BNB Network, if so how can you tell?
No, it is not possible especially since ETH and BNB networks share the same address format which is prefixed with "0x." But if its in your wallet then obvious know the address belongs to what network but if you are trying to find the address of someone else then you will always get two results no matter on which explorer you choose to search the address.