Question

pure substances (mixtures)
An impure substance, or a mixture contains
Also, these substances can be separated from
elements, compounds, or elements and compou
a compound. The proportion of the constituente
the components of a mixture is not. For example
with any amount of water to form a mixture
Most materials that we use or come across
others need purification (le, separation) before​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

Explanation:

Types of Substances

Substances are basically classified into two types. They are:

Pure Substance: The substances that are free from any kind of mixture and contain only one kind of particle are pure substances. Examples of pure substances include iron, aluminum, silver, and gold.

Mixtures: Substances that have two or more different particles are mixtures. Examples of mixture include the salt solution which is a ‘mixture’ of two components, salt, and water.

Learn more about the Suspension: a Heterogeneous mixture of two or more substances.

Now that we know what are the basic types of substances, let us cover the concept of pure substances in more detail.

Pure Substances

Types of Pure Substances

Based on their chemical composition, pure substances are classified into two categories:

Elements

Compounds

Physical and Chemical Changes

Element

A pure substance that has only one kind of atom and cannot be broken into two or more simpler substances by physical or chemical means is an element. Therefore, when you break down gold, you still get gold. It is an element.

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Pure and Impure Substances

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Browse more Topics under Is Matter Around Us Pure

Physical and Chemical Changes

Introduction and What is a Mixture?

Separating the Components of Mixture

What is a Solution?

Concentration of a Solution

What is a Colloidal Solution?

What is a Suspension?

Characteristics of Elements

An element is homogeneous in nature; it is a pure substance, made up of only one kind of atoms. For example, iron and silver are made of only iron and silver atoms. Therefore, they are elements.

An element cannot be broken down into simpler substances by any physical or chemical methods such as heat, light electricity, or chemical reactions with other substances. Therefore, when you break a piece of iron into smaller pieces or heat it, the piec

Ans: Solid, liquid and gas.