What is a covalent bond?
A covalent bond is a bond where electrons are shared between atoms. An example of a covalent bond is H2O, or water.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: What is a covalent bond?
### Input: 
### Response: A covalent bond is a bond where electrons are shared between atoms. An example of a covalent bond is H2O, or water.