Mixtures

• Mixtures consist of two or more substances simply mixed together, but not chemically combined.

For example:

• Air is a mixture of various gases such as nitrogen, oxygen, carbon dioxide, water vapour, argon, dust, smoke, and many other gases.
• Thus, a mixture has two or more different elements and/or compounds physically intermingled.
• A mixture of iron and sulphur can be prepared by mixing the two components, likewise sugar solution can be prepared by dissolving sugar in water.
• A mixture retains the properties of its components, e.g., in a mixture of iron and sulphur, iron and sulphur both retain their characteristic properties, i.e., iron is attracted by a magnet and sulphur remains as a yellow powder.

Mixing of sulphur and iron filings

Separation of sulphur and iron filings