Is zero a rational number? Can you write it in the form p/q where p and q are integers and q ≠ 0?

Yes, zero is a rational number.

It can be written in the form p/q where p and q are integers and q ≠ 0.

For example:$$0 = \frac{0}{1}, \frac{0}{2}, \frac{0}{5} \text{ etc.}$$

Here, p = 0 and q ≠ 0, so it satisfies the condition of a rational number.