How to change the buttons?

Hi, I’m making a blackjack game for the web player and I’ve put a “Deal!” button, so when the player is all set and ready to play he presses that button, but how can I do that when he presses that button, these disappear and others(such as: Stand, Hit & Double) will appear to replace the deal button?

Ps. If it requires a scene change, how can I do it, so the same amount of coins is displayed ?

When you load the scene have the Deal button active and the rest not. Then when you click deal swap the active game objects: Unity - Scripting API: GameObject.SetActive