Exam 2 review information Iron is a variable metal with more than one charge For example Iron II oxide is used as a pigment in cosmetics and tattoos while Iron III oxide is rust What is the ionic formula of Iron III oxide Fe3 O2 then switch them o Fe2O3 Correct Lewis dot structure for O3 What is the ionic formula of the compound formed between the ions of barium Ba and The correct formula for the ionic compound containing Al3 and PO4 2 would be o nitrogen N Ba2 N3 o Ba3N2 while the name is o Al2 PO4 3 o Aluminum Phosphate There is only one questions involving roman numerals and it says it in the question No other questions will have a roman numeral as an answer Name P2F5 Name SiO2 When the following reaction has been correctly balanced what coefficient will be placed diphosphate pentafluoride Silicon Dioxide in front of O2 o 6 C4H8 O2 CO2 H2O C4H8 6O2 4CO2 4H2O o Single replacement What type of reaction is the following 2AgNO3 aq Cu s Cu NO3 2 aq 2Ag s