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.
Type of reaction: double displacement. b) 2. NH3+ 1. H2SO4 ( 1 (NH4)2SO4 . Type of reaction: synthesis. c) 4. C5H9O + 27. O2 ( 20. CO2 + 18. H2O. Type of reaction: combustion. d) 3. Pb + 2. H3PO4 ( 3. H2 + 1. Pb3(PO4)2. Type of reaction: single displacement. e) 1. Li3N + 3. NH4NO3 ( 3. LiNO3 + 1 (NH4)3N. Type of reaction: double displacement. f) 3. HBr + 1. Al(OH)3 ( 3. H2O + 1. AlBr3 Type of reaction: acid-base (double displacement) Na3PO4 + 3 KOH ( 3 NaOH + K3PO4 Reaction Type __double displacement_____