Physical Sciences Break 1.0

Atomic Structure

Internal resistance and Series-Parallel networks

Physical Sciences Grade 11 Prescribed Experiment for formal Assessment Knowledge Area: Electricity and Magnetism Topic: Internal resistance and Series-Parallel networks Part 1 Aim To determine the internal resistance of a battery Precautions Do not leave the switch closed at all times. The battery will run flat. Close the switch only for taking the readings on…

Grade 10 – The formation of the dative covalent (or coordinate covalent) bond

The formation of a dative covalent bond, also known as a coordinate covalent bond, occurs when one atom donates both of its electrons to another atom to form a covalent bond. This type of bond is also known as a “dative” bond because the electrons are donated by one atom to another, rather than being…

Grade 10 -A chemical bond

A chemical bond is a force that holds atoms together in a molecule. It is formed by the attraction between the positively charged nuclei of atoms and the negatively charged electrons surrounding them. The strength of this attraction is determined by the distance between the atoms and the number of electrons involved in the bond.…

Grade 10-Flame tests to identify some metal cations and metals.

Flame tests are a simple and effective way to identify the presence of certain metal cations in a sample. The principle behind flame tests is that when a metal cation is heated in a flame, it will emit light of a specific color that can be used to identify the metal cation. Experimental Method: Data…