Final answer:
Expressed powers are those powers that are specifically listed in the Constitution, such as the power to levy taxes and declare war, while implied powers are not specifically stated but are considered necessary to implement the expressed powers.
Step-by-step explanation:
The powers that are specifically listed in the Constitution are called the expressed powers. These are the powers that have been enumerated, or — as the name suggests — expressly stated in the text of the Constitution. For instance, in Article I, Section 8, the power to collect taxes, regulate interstate commerce and declare war are all examples of expressed powers of the legislative branch.
There are also implied powers, which are not explicitly listed in the Constitution but are considered necessary extensions of the expressed powers. These can be inferred from the Necessary and Proper Clause, also known as the "elastic clause," which allows the legislative branch to pass any law required for the exercise of its enumerated powers.