It seems like there might be a small typo in your question. If you are asking about the mixing of one substance with another, this can refer to "dissolution," "blending," or "combination," depending on the context in which you're discussing the substances.
For example:
- Dissolution: When a solid (like salt) is mixed into a liquid (like water) and becomes homogeneously integrated.
- Blending: When different substances (like different powders or liquids) are mixed to create a uniform product.
- Chemical Reaction: When substances are mixed and undergo a chemical change (like vinegar and baking soda).
If you meant something specific by "duets" or if you're looking for a more particular concept, please clarify!