Final answer:
In the Constitution, expressed powers are explicit and implied powers are deduced as necessary. The Necessary and Proper Clause provides Congress with the authority to create laws deemed essential and appropriate. Two congressional powers, including taxation, and the ability to regulate commerce, were then discussed in detail.
Step-by-step explanation:
Expressed powers are those specifically stated in the Constitution, while implied powers are those which aren't explicitly mentioned but are accepted as necessary for the execution of expressed powers. The Necessary and Proper Clause, also referred to as the Elastic Clause, gives Congress the right to make all laws considered necessary and proper for carrying out its duties.
For instance, one of the congressional powers is the power to tax. The right to impose taxes is explicitly mentioned in the Constitution and affords Congress an important role in the nation's fiscal and economic policies. However, there are limitations to this power, such as the prohibition of taxing exports.
Another example of congressional power would be the power to regulate commerce. This power enables Congress to regulate trade between states, other nations, and between Native American tribes. The extent of this power is somewhat contentious and has been interpreted differently throughout history, leading to landmark Supreme Court rulings.
Learn more about Powers of Congress