A good contract bookkeeper is able to: 1  Set up accounting systems and software properly. 2  Enter transactions. 3  Perform checks, reconciliations and end of year processes.  Ensure they are up to speed with legislative requirements and management 1  reports. Undertake payroll duties and compliance.
An active metal is a metal that displaces hydrogen from an acid. Examples of active metals include magnesium, zinc and iron. This type of reaction is also called a single displacement reaction where the active metal 'displaces' the hydrogen from the acid. Examples of reactions involving acids and active metals. 1  Hydrochloric acid + Magnesium â Magnesium chloride + Hydrogen.
The Reaction between Magnesium and Oxygen. Magnesium is in group 2 of the periodic table. A magnesium atom will lose 2 electrons to form a stable 2+ ion. Oxygen is in group 6 of the periodic table.An oxygen atom will gain 2 electrons to form a stable 2- ion. In this example the electrons are shown as dots and crosses.agnesium is in group 2 of the periodic table. A magnesium atom will lose 2 electrons to form a stable 2+ ion. Oxygen is in group 6 of the periodic table. An oxygen atom will gain 2 electrons to form a stable 2- ion. In this example the electrons are shown as dots and crosses.