the substance is substance
The two types of matter that are pure substances are elements and compounds.
pure substances and mixtures
The main reason is simply one of dichotomy: either a substance is pure or it is not pure. If it is not pure then it consists of two (or more) substances which are chemically separate - a mixture.
the substance is substance
A mixture is a substance made up of two or more pure substances.
Matter can be divided into two categories: pure substances and mixtures. Pure substances are made up of only one type of atom or molecule, while mixtures contain two or more different substances physically combined.
A mixture contain two or more pure substances.
Pure salt, NaCL, is a chemical compound made from two elements. So yes it is a combination of two pure substances
Substances are classified into two main categories: pure substances and mixtures. Pure substances consist of a single type of particle and can be further divided into elements and compounds. Mixtures, on the other hand, contain two or more different substances that retain their individual properties and can be homogeneous (uniform composition) or heterogeneous (distinct phases). This classification helps in understanding the properties and behaviors of different materials in chemistry.
The two classifications of pure substances are elements and compounds. Elements are made up of only one type of atom, while compounds are made up of two or more different types of atoms bonded together in a fixed ratio.
Matter can be divided into two categories: pure substances and mixtures. Pure substances are made up of only one type of atom or molecule, while mixtures are composed of two or more different substances that are physically combined.
The two types of pure substance are elements and compounds The two types of pure substance are elements and compounds