Final answer:
Under the Articles of Confederation, the national government had the power to negotiate treaties, collect taxes, and enforce its laws, but it did not have the power to establish a federal judiciary or regulate interstate commerce.
Step-by-step explanation:
The national government had the power to negotiate treaties, collect taxes, and enforce its laws under the Articles of Confederation. However, it did not have the power to establish a federal judiciary or regulate interstate commerce. These limitations on the national government's powers were one of the weaknesses of the Articles of Confederation.