Mixture
Sterling silver is not a mixture; it is a homogeneous solid solution made up of 92.5% silver and 7.5% other metals, typically copper. It is considered a pure substance due to its consistent composition throughout.
Silver is a chemical Element - which means silver is a pure substance.
Sterling silver is not pure silver; it is a mixture of 92.5% silver and 7.5% other metals, usually copper. This mixture is used to increase the durability and strength of the silver, making it suitable for jewelry and other items.
A silver pendant could be a pure substance, but if it is a modern commercially produced pendant, it is more likely to be a mixture, because pure silver is so soft that it is very easily damaged. The most nearly pure silver alloy commonly used in jewelry is called "sterling silver" and contains 92.5 % silver.
Sterling silver is a homogeneous mixture composed of 92.5% silver and 7.5% of other metals like copper. It is not a compound because it does not involve a chemical reaction combining different elements.
Unadulterated silver nitrate is a pure substance.
Silver is not a homogeneous mixture or a heterogeneous mixture, it is a pure element. Silver does appear in homogeneous mixtures and heterogeneous mixtures such as sterling silver and silver nitrate.
Pure silver is homogeneous.It has no allotropic phase.
Alloys are metal mixtures. For example, Sterling silver is a mixture of silver and copper.
Sterling silver is an alloy of silver containing 92.5% by weight of silver and 7.5% by weight of other metals, usually copper. The sterling silver standard has a minimum millesimal fineness of 925. That makes it a heterogeneous mixture.
pure substance?
Sterling is 92.5% pure silver, so there is 0.925 of a Troy ounce of pure silver in 1 Troy ounce if Sterling.