Содержание
- 2. Chemical Formulas A molecular formula shows the exact number of atoms of each element in the
- 4. If you know the name of an ingredient, you can write a chemical formula, and the
- 14. Ionic compounds consist of a combination of cations and anions (metal + nonmetal). the formula is
- 17. Formula of Ionic Compounds Al2O3 Al3+ O2- CaBr2 Ca2+ Br- Na2CO3 Na+ CO32-
- 22. Chemical Nomenclature Ionic Compounds often a metal + nonmetal anion (nonmetal), add “ide” to element name
- 23. Transition metal ionic compounds indicate charge on metal with Roman numerals羅馬數字 FeCl2 2 Cl- -2, so
- 31. Molecular compounds nonmetals or nonmetals + metalloids common names H2O, NH3, CH4, C60 element further left
- 32. HI hydrogen iodide NF3 nitrogen trifluoride SO2 sulfur dioxide N2Cl4 NO2 N2O Molecular Compounds
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