Why sending bitcoin and one addresss shows (Unspend) and one address shows (Spent)? I sent some btc to a btc address, and each time we send btc, it gets to split into two addresses, only one of them is the real destination address. The recipient said he has not received the the btc yet. I checked blockchain info, it shows the detination address (spent) but the other address as (unspent). This is normal right? If the recipient's wallet address shows spent, it means the btc has arrived in his wallet right?

Please confirm. Thanks!
The second address your transaction sent to is called a ‘change address’. If you search that term on this site you can learn about what a change address is. 

Here is a breakdown of the different status’ blockchain.info reports on their block explorer website:


if it says ‘unconfirmed’, that means transaction is not yet confirmed (not yet included in a block)
if it says ‘unspent’, that means the transaction went through, and the funds are still sitting in that address
If it says ‘spent’, that means the transaction went through, and the recipient has already moved the funds to another new address