# Test #2 chp 3-5 Flashcard

 Naming Cations
 1. for small main group metals name the element followed by ‘ion’2. for all other metals name the element, then give the charge then ‘ion’
 Naming Anions
 name the element changing the ending to ide, then ‘ion’
 “ium” ending
 cation
 “ate” or “ite” ending
 oxygen
 Naming Ionic Compounds
 1. name the cation2. then name anion3. do not indicate #s of ions
 Writing Compounds from Name
 1. write the ions (with charge)2. put them together by charge
 % Composition
 1. % are g2. convert each element from g to m3. divide by lowest number of moles4. get whole number rations for the empirical formulas
 Empirical Formula to Molecular Formula
 1. calculate the formula mass from the empirical formula2. Divide the molecular weight by formula mass3. Multiply the empirical formula by the ratio
 Combustion Data on molecules with only H and C
 1. get moles of C from CO22. get moles of H from H2O3. Divide by the lowest number of moles4. get whole number ratios
 Combustion Data for a Carbon, H, and O molecule
 1. get mass of C from CO22. get mass of H from H2O3. Subtract mass of C and H from total mass4. convert all mass to moles5. divide lowest number of moles6. get whole number ratios
 Naming (small) Covalent Molecule (non-metal)
 1. name first element2. Name second element, changing ending to “ide”3. use prefixes to indicate numbers of each element (don’t use mono for first element)
 Acid
 donates a Hydrogen Ion H+
 Base
 Donates an OH- ion
 Naming Acids (without oxygen)
 1. name the hydrogen as Hydro2. name the anion changing the ending to “ic”
 Naming Acids (with oxygen)
 1. don’t name the hydrogen2. name the anion changing the ending: ite….ousate….ic
 Stoichiometry
 1. get info in the problem2. get a balenced equation3. get molecular weight4. set calculation
 Theoretical Yeild
 How much product can be formed
 Ion Exchange
 1. precipitation- froms a (S)2. Acid/Base neutrilization- acid/base as reactent usually form H2O
 Salt
 an ionic compoind that is not an acid or a base
 Acid/Base Neutralization
 1. get reactant2. Break (aq) reactatnts into ions3. trade partners4. put weak acids/bases back together5. balence6. break aqueous products into ions7. cancel spectator ions8. write net ionic
 Gas Forming Reactions
 1. get reactants2. break (aq) reactants into ions3.trade partners4. write products, balence5. replace intermediates with water and gas6. break (aq) products into ions7. cancel spectator ions8. wirte net ionic
 Reduction Oxidation Reactions (movement of electrons)Redox
 1.the oxidation number of a purte element is zero2. the oxidation number of a monatomic ion is the charge on the ion3. the oxidations nymbers of a compoind add up to zero4. the oxidation mubmer of a polytomic ion add up to the charge on the ion5. the oxidation of fluorine is -1, all other halogens have an oxidation number of -1 unless its with fluorine or oxygen6. hydrogen has an oxidation number of +1 when with a non metal, with a metal it is -17 oxygen has an oxidation of -2 unless it is a peroxide, then it is -1