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Use prefixes then name element Don’t use mono-for first element Change ending of 2 nd element to –ide H 2 O dihydrogen monoxide NH 3 nitrogen trihydride N 2 H 4 dinitrogen tetrahydride C 5 H 10 pentacarbon decahydride. 1 = mono 2 = di 3 = tri 4 = tetra 5 = penta 6 = hexa
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Use prefixes then name element Don’t use mono-for first element Change ending of 2nd element to –ide H2O dihydrogen monoxide NH3 nitrogen trihydride N2H4 dinitrogen tetrahydride C5H10 pentacarbon decahydride 1 = mono 2 = di 3 = tri 4 = tetra 5 = penta 6 = hexa 7 = hepta 8 = octa 9 = nona 10 = deca Naming Binary Compounds
H2O CCl4 As2O3 SO2 H2O2 NH3 N2H4 N2O P10O4 N5O9 Naming Binary Covalent Compounds VI
Naming Binary Acids(H Element) • To name hydrogen use hydro- • Use the root word of the element and change ending to –ic acid HS hydrosulfuric acid HBr hydrobromic acid HCl hydrochloric acid HI hydroiodic acid
Naming Ternary Acids(H Element Element) • Don’t use hydro • Use anion name and acid • If anion ends in –ate change it to –ic acid • If anion ends in –ite change it to –ous acid HClO3 (ClO3 = chlorate) chloric acid HClO2 (ClO2 = chlorite) chlorous acid
Molecular Formulas Practice V • H2SO4 • HCl • H3PO4 • HClO2 • H2SO3 • HF • HNO2 • O2 • H2 • Br2