A mechanical mixture is one that can be separated through mechanical means, such as a magnet or a centrifuge. Mechanical mixtures are not chemically bonded.Know More
While mechanical mixtures may be attracted to each other, there is no permanent gain or loss of electrons; they do not form different molecules.
One example of a mechanical mixture is iron filings in flour. No matter how thoroughly they are mixed, the iron filings can always be separated from the flour using a magnet. Water with microscopic particles in it is a mechanical mixture, as these particles can be removed through filtration. Oil floating on water is a mechanical mixture because oil and water do not combine. Even blood can be separated into its components, as red cells are heavier than plasma. However, salt water is not a mechanical mixture because the ions in salt are bonded to the water molecules. The salt cannot be extracted without, for example, the application of heat to cause a chemical change.
Mechanical mixtures are often created in recycling. Magnets, filtration and other methods are used to separate each recyclable component, as they have different physical properties. Given the lack of chemical bonds, it is also possible to apply chemicals that only affect one component of the mixture.Learn more in Solutions & Mixtures
In scientific language, a solution is a mixture of at least two substances in which the particles of the substances are of atomic or molecular size. A solution is a homogeneous mixture, which means that all parts of the mixture are exactly the same as every other part.Full Answer >
Decantation and filtration differ in the manner through which the methods separate substances in a mixture. In decantation, the separation of two substances, either of a solid and liquid or two immiscible liquids, occurs by allowing the mixture to settle and separate.Full Answer >
To make elephant toothpaste, combine 4 ounces of hydrogen peroxide with 2 ounces of liquid dish soap in a 20-ounce soda bottle, and add a mixture of warm water and one packet of yeast. Food coloring may be added to the soap and hydrogen peroxide mixture if desired.Full Answer >
A racemic mixture is a mixture with equal amounts of two different stereoisomers of a chemical compound. These stereoisomers are mirror images of one another that cannot be superimposed onto one another. These types of stereoisomers are also called enantiomers.Full Answer >