Couse it is!
milk
After my opinion they are not colloids.
Sometimes is possible, depending on the type of the coloid; for example aerosols.
Yes, soapsuds are considered colloids. They are formed when soap molecules surround and trap air or gas bubbles in water, creating a stable dispersion. This is a typical example of a colloidal system.
An example of how people use colloids every day is when some one drinks juice when it says shake well. That means that it contains something that does not dissolve in water and sits on the bottom.
Medicines in colloidal form are easily adsorbed by the body tissues and hence are more effective, biological sciences are with numerous colloidal systems, including cell membranes, viruses, bacteria, DAN, proteins... colloids play a role in the semiconductor industry, memory chips, and micro-processors, Polymers, or macromolecules, in solution are lyophilic colloids...
These colloids are called emulsions.
Cooks produce colloids during food preparation because colloids enhance texture, stability, and flavor in dishes. For example, emulsions like mayonnaise and sauces rely on colloidal mixtures to combine ingredients that typically don't mix, such as oil and water. Additionally, colloids can improve the mouthfeel and appearance of foods, making them more appealing. This manipulation of mixtures allows for greater creativity and innovation in culinary practices.
some colloids cause pollution in the environment...some colloids release cfc's that contributes to the ozone layer depletion...
colloids are not visible due to their tiny particle size, (when the colloid is stable).
Yes, colloids can leave a residue when filtered. Colloids are larger particles that can be trapped by the filter, resulting in a residue left behind after filtration.