Hi,
I try to understand transaction when opening a new lightning network channel on Electrum. I open a channel in amount of 7 mbtc and it's still unconfirmed.
On the transaction detail it says that:

  0.030956 BTC split into 0.007 BTC and 0.02393 BTC and tx fee

What is 0.030956 btc? why is doing the split?

regards