Answer :
The key difference between federal government and confederate government are their powers. For the confederate system most of the power is given to the states, while in the federal system more power is given to the central government.
In a federal government power is separated and Shared between the central government and the state governments Ex.United states
In a confederal government power is held by the independent states or countries Ex. European Union
In a confederal government power is held by the independent states or countries Ex. European Union