Elements

Compounds

Mixtures

Made up of only one kind of atom.

Different elements in a compound

combine in a fixed proportion by mass.

The components in a mixture

are not mixed in any fixed

proportion

An element is the simplest

pure substances.

A chemical change takes place

when a compound is formed.

No chemical reaction occurs.

There is little or no

heat/light energy taken in or

given out.

Elements have properties similar those of their atoms.

A compound has properties which are different from the properties of its constituent elements.

A mixture has the properties of the substances which it is made up of.

Elements cannot be broken down.

A compound can be broken down,

by chemical methods, for example. Heating (decomposition) or passing electricity through it.

A mixture can be separated easily by physical methods, for example, filtration, distillation and evaporation.


external image images?q=tbn:ANd9GcQQJJ8BDXRqxY-Y31ZJqMf3VuSQlJesLNNaUYBBiRCBLtNiDW0&t=1&usg=__6edCssiCQSNINT-PUGhJp9e0EuM=

This is what I learn about elements mixtures and compounds.


Solution and suspension

The definition of solution is, a homogeneous (when there is the same characteristics throughout the solution) mixture in which one or more substances are dissolved in another substance. There are five types of solution, as followed -
  • Solid-liquid solution: sugar solution, salt solution

  • Gas-liquid solution: hydrochloric acid, soft drinks

  • Solid-solid solution: brass, bronze

  • Liquid-liquid solution: vinegar, beer, wine

  • Gas-gas solution: air, natural gas (gas around us)