👉 Noneequivalents is a term in the field of chemistry that refers to substances or compounds that do not have an equivalent in nature. In other words, they are not interchangeable with any other substance or compound because they cannot be produced through chemical reactions. Examples of non-equivalent substances include water (H2O) and ammonia (NH3), which are both gases but have different physical properties due to their different molecular structures. Similarly, carbon dioxide (CO2) and oxygen (O2