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.
acid/base reaction: H 3O + + ClÂ¯ HCl + H 2O Acid and bases involved in the reverse reaction is call conjugate acid and conjugate base Conjugate acid: H 3O + - this is a BrÃ¸nsted-Lowry conjugate acid, because it can give a proton. Conjugate base: ClÂ¯ - this is a BrÃ¸nsted-Lowry conjugate base, since it has the capacity to receive a proton.