CHEM103 Lecture Notes - Lecture 5: Potassium Bromide, Balance Equation, Nitric Acid
26 Sep 2018
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Formulas of acids start with h: hcl hno3 h2so4 h3po4. Formulas of bases and with oh: naoh koh ca(oh)2. Hcl + naoh = h2o + nacl. = is yields , produces , react to from . Balanced equation: have the same number of atoms of each element on both sides of the yields arrow. Solution: 2fe + 3cl2 2 (fecl3) *make sure to keep the formulas the same, the coefficients can change but the molecules themselves cannot. Multiples of balanced equations are still balanced equations. 2. 7 chemical nomenclature: how compounds get their names: ionic compounds (metal + nonmetal, cation anion-ide, nacl = sodium chloride, kbr = potassium bromide, cao = calcium oxide. Feo3 = iron (iii) oxide: molecular compounds: only nonmetals, prefix-cation prefix-anion-ide , co2 = carbon dioxide, co = carbon monoxide. Sf6 = sulfur hexafluoride: n2o5 = dinitrogen pentoxide. P4o10 = tetraphosphorus decaoxide: bbr3 = bromine tribromide, acids: two kinds, binary acids (h, x)
