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.
Write a balanced chemical equation for this reaction. 1  Identify the reactants and products: reactants : zinc and hydrochloric acid. products : hydrogen and zinc chloride. 2  Write the word equation: general form of equation: reactants. â. 3  Write the formula for all reactants and products: zinc : Zn. hydrochloric acid : HCl.