To express 2 to the power of 0, you simply write it as 20. In mathematics, any non-zero number raised to the power of 0 equals 1. So, 20 = 1. This rule holds true for all numbers except for 0 itself, which is undefined when raised to the power of 0.
The reason behind this rule can be understood through the concept of exponents. For example, when you divide the same base with different powers, you subtract the exponents: 2n/2n = 2n-n = 20. Since any number divided by itself equals 1, we have 20 = 1.