2 Place around polyatomic ion ONLY IF more than one then tell how many as

2 place around polyatomic ion only if more than one

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2. Place ( ) around polyatomic ion ONLY IF more than one, then tell how many as subscript outside ( ). 3. This is ionic bonding between metal and polyatomic ion. 4. Covalent bonding holds the polyatomic ion together. NH 4 ClO= ammonium hypochlorite (NH 4 ) 2 SO 3 = ammonium sulfite Type II e Polyatomic Ion + Nonmetal 1. Name polyatomic ion them nonmetal, 2. Nonmetal name is changed to the “ide” suffix since it is the anion. NH 4 F = ammonium fluoride (NH 4 ) 2 O = ammonium oxide Type III Nonmetal + Nonmetal 1. Name as though ionic, even though it is not. This is covalent bonding. 2 . Do not try to solve using metal + nonmetal rules. JUST NAME IT USING GREEK PREFIXES. mono =1, di=2, tri=3, tetra =4, penta =5, hexa =6, hepta =7, octa =8, nona =9 deca =10 3. Never use mono for the first element. SO 3 = sulfur trioxide P 2 O 5 = diphosphorus pentoxide Acids & Bases 1. Acids have H written first in the formula. These are the transferable hydrogens. Acids should be denoted by the (aq) state. Acids without oxygen are named hydro___ ic acid. Acids with oxygen are named by looking at the ending of their polyatomic names. If “ate”, then “___ic acid” and if “ite”, then “___ous acid”. Hydro is not used with acids with oxygen in it. 2. Bases can be easily recognized when the hydroxide ion (OH - ) is observed. Ammonia (NH 3 ) is also a base. HCl (aq) = hydrochloric acid H 2 SO 4 (aq) = sulfuric acid HNO 2 (aq) = nitrous acid HYDRATES (hydrate = H 2 O associated with complex) 1. Name the compound as noted above. 2. Tell how many hydrates using Greek prefixes. 3. Place a dot ( . ) between complex and hydrate. 3. Mono is used to indicate only one hydrate. NaNO 3 . H 2 O = sodium nitrate monohydrate Sn(ClO 3 ) 2 . 7 H 2 O =tin (II) chlorate heptahydrate (IUPAC System) or stannous chlorate heptahydrate (Classical System)