Question

what are the types of pure substance
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Answer 1

Answer:

There are two types of pure substances that are Elements and Compounds. Examples of elements are: Iron, Silver, Gold, Mercury etc. Examples of compounds are: Water, Carbon dioxide, methane, vinegar etc.

Answer 2

Hi let me explain u

Pure substances

 Pure substances are elements or compounds.

 They are made up of only one kind of entity.

 They cannot be broken down into simpler entities by

chemical or physical methods.

 They have a fixed composition.

 Example: Diamond, carbon dioxide.

Mixtures

 Mixtures are formed by just mixing two or more pure

substances (components) such that each substance

retains its own chemical identity.

Types of mixtures

Types:

1. Homogeneous mixture

A mixture which has a uniform composition throughout is

called a homogeneous mixture or solution.

 Examples: sugar in water, salt in water.

Heterogeneous mixture

A mixture which contains physically distinct parts and has a

non-uniform composition is called a heterogeneous mixture.

 Examples: Mixture of salt and iron filings, sand and sugar.

Solutions

Solutions and their properties

 A solution is a homogeneous mixture of two or more

substances.

Alloys

Alloys are homogeneous mixtures of metals or a mixture of a

metal and another element that cannot be separated into their

components by physical methods.

THEREFORE THE TYPES OF PURE SUBSTANCES ARE;

Homogenous and hetrogenous mixture