What is the main difference between federal and confederal systems of government?

In a federal system there is no centralized authority, while in a confederal system power is distributed equally among the states.
In a federal system there is no centralized authority, while in a confederal system local offices give advice to a centralized authority.
In a federal system there is centralized authority, while in a confederal system power is distributed equally among the states.
In a federal system power is distributed equally, while in a confederal system the states have less authority than the central government.

In a federal system, power is distributed between a central authority and regional or local governments, with each level of government having its own areas of authority. There is a balance between the central government's authority and the autonomy of the regional or local governments. In a confederal system, power is distributed more evenly among the states or member entities, with a weak central government having limited powers and the states or member entities having more authority. The central government in a confederal system usually relies on the states or member entities for its power and authority.

The main difference between federal and confederal systems of government is that in a federal system, there is a centralized authority that holds significant power, while in a confederal system, power is distributed equally among the states or local governments.