"Unstirred" typically refers to a state where something, such as a liquid or mixture, has not been mixed or agitated. In the context of chemistry, it can describe solutions or substances that have not been adequately combined, leading to uneven distribution of components. In a broader sense, it can also refer to situations or conditions that lack a particular influence or action.
A solution in which more solute can be dissolved.
An unsaturated solution is one in which more solute can be dissolved at a given temperature. It is considered relatively dilute and able to hold additional solute without reaching its saturation point. This type of solution is not at equilibrium in terms of the solute's solubility.
They can be open chain "acyclic/aliphatic" or closed chain "ring/cyclic" (carbon chains). Openhain is again of different types, saturated ie.only single bonds or unsturated ie.double or thriple bonds. Cyclic hydrocarbons can be monocyclic or polycyclic
Lipids that are saturated have two hydrogen atoms attatched to all carbon atoms Lipids that are unsaturated have one or more carbon atoms double bonded, creating fewer hydrogen atoms attatched to the carbon backbone