consists of pure and impure substances.
Answers
Step-by-step explanation:
#What is Pure Substance?
=>Pure substances are substances that are made up of only one kind of particles and has a fixed or constant structure.
#Characteristics and Properties Of Pure Substances.
1)Pure substances are mostly homogeneous in nature containing only one type of atoms or molecules.
2)These substances mainly have a constant or uniform composition throughout.
3)The substances have fixed boiling and melting points.
4)A pure substance usually participates in a chemical reaction to form predictable products.
#Examples of Pure Substances
=>All elements are mostly pure substances. A few of them include gold, copper, oxygen, chlorine, diamond, etc. Compounds such as water, salt or crystals, baking soda amongst others are also grouped as pure substances.
#What is a Mixture/impure substances.
=>A substance, on the other hand, is impure if it consists of different kinds of elements combined together physically and not chemically. Impure substances are also called mixtures.
#Characteristics And Properties Of Mixtures Or Impure Substance.
1)It does not have any specific properties, the properties of the mixture are a result of the average properties of all the constituents.
2)It is formed as a result of a physical change.
3)They have a variable composition.
4)Their melting and boiling points differ.
#Example Of Mixtures
Some common examples of mixtures include;
Gas and gas like nitrogen and oxygen in the atmosphere.
A solution like water and oil.
Gas and liquid such as water.
Solid and liquid such as sand and water
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