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.
Reaction of magnesium with the halogens. Magnesium is very reactive towards the halogens such as chlorine, Cl 2 or bromine, Br 2, and burns to form the dihalides magnesium(II) chloride, MgCl 2 and magnesium(II) bromide, MgBr 2, respectively. Mg(s) + Cl 2 (g) â MgCl 2 (s).