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The metals 4

The importance of good and bad conductors of heat

All metals are good conductors of heat and they are different in conducting the heat, which means that some metals conduct the heat faster than the other, The heat makes us comfortable and helps...

The atom 0

The atomic structure of the matter

The atom The atom is the fundamental building unit of the matter, and it is the smallest individual unit of the matter which can share in the chemical reactions, Boyle, Thomas, Rutherford and Bohr...

Acids and bases 1

The importance and properties of the bases (alkalis)

The bases (alkalis) The bases are the substances that dissociate in the water producing the negative hydroxide ions (OH–), Examples of some bases such as sodium hydroxide (the caustic soda) NaOH, calcium hydroxide (lime...

The transfer of the heat energy . 6

The importance of the heat (thermal energy)

The heat The heat is a form of energy that transfers from the higher temperature object to the lower temperature object, and is transferred through the conduction, the convection and the radiation.

Acids 0

The types and properties of the acids

Types of the compounds There are a countless number of existing compounds, they can be classified according to their properties only into the acids, the bases (alkalis), the oxides and the salts.