HOW TO NAME COVALENT COMPOUNDS? - …

1 May be used upon acknowledgement. TO name COVALENT COMPOUNDS? COVALENT compounds are produced bynon metallic elements bonding with one another. Eg. Water, H2 OValencies can be used to determine the formula ofsome COVALENT the chemicalformulaof compoundsformed between the following pairs of non-metallic elements using & ON & HN & OC & OP & FCompoundThe chemical formulas of many molecules however, cannot be determined by using H2O2, N2H4, NO, NO2, CO and PF5 Romans numerals can be used but often fail to distinguish between some molecular NO2 is nitrogen(IV) oxide and N2O4 is nitrogen(IV) system of naming is FOR NAMING COVALENT COMPOUNDS1.

2 Prefixes are added according to the molecular formula. Fill in the table with the correct 2. Themost non-metallic element has the ide which element has the suffix?*Across a period the elements become (more/less) Sulfur and chlorine _____eg. Boron and fluorine _____*Down a group theelement become (more/ less) Chlorine and fluorine _____eg. Carbon and silicon _____3. There is no mono for the first name , ONLY for the Carbon monoxide and is not monocarbon monoxide*Sometimes the mono is also left out in the second NO, nitrogen monoxide is sometimes called nitrogen the suffix ends in an a or an o and the element begins with an a or an o , the final vowelof the prefix is often dropped for ease of Carbon monoxide andnot carbon monooxideeg.

3 Dinitrogen tetroxide andnot dinitrogen tetraoxideNote: Phosphorous triiodide remains unchanged. Sulfur tetraiodide remains Some substances still retain their common nameseg. H2O is water and notdihydrogen monoxideeg. H2O2 is hydrogen peroxide and not _____eg. NH3 is ammonia and not _____May be used upon acknowledgement. THE FOLLOWING COVALENT COMPOUNDSNameChemical (IV) oxide* (I) oxide* (III) chloride* disulfide*Hint: Romans numerals are used to tell us the combining power of an the arm and link method to determine the chemical formula for these compounds element is given theidesuffix?

4 The most electronegative (or non-metallic) be used upon acknowledgement. TO name COVALENT COMPOUNDS? ANSWERSC ovalent compounds are produced bynon metallic elements bonding with one another. Eg. Water, H2 OValencies can be used to determine the formula of some COVALENT compounds. Determine the chemicalformula of compounds formed between the following pairs of non-metallic elements using & ON & HN & OC & OP & FCompoundH2 ONH3N2O3CO2PF3 Thechemicalformulas of many moleculeshowever, cannot be determined by using H2O2, N2H4, NO, NO2, CO and PF5 Romans numerals can be used but often fail to distinguish between some molecular NO2 is nitrogen(IV) oxide and N2O4 is nitrogen(IV) systemof naming is FOR NAMING COVALENT COMPOUNDS1.

5 Prefixes are added according to the molecular formula. Fill in the table with the correct 2. Themost non-metallic element has the ide suffix. Determine which element has the suffix?*Across a period the elements become(more/less) Sulfur and suffixeg. Boron and suffix*Down a group the element become(more/less) Chlorine and suffixeg. Carbon and suffix3. There is no mono for thefirst name , ONLY for the Carbon monoxide and is not monocarbon monoxide*Sometimes the mono is also left out in the second NO, nitrogen monoxide is sometimes called nitrogen Where the suffix ends in an a or an o and theelement begins with an a or an o , the final vowelof the prefix is often dropped for ease of Carbon monoxide andnot carbon monooxideeg.

6 Dinitrogen tetroxide andnot dinitrogen tetraoxideNote: Phosphorous triiodide remains unchanged. Sulfur tetraiodide remains Some substances still retain their common nameseg. H2O is water and notdihydrogen monoxideeg. H2O2 is hydrogen peroxide and notdihydrogen dioxideeg. NH3 is ammonia and notnitrogen trihydrideMay be used upon acknowledgement. THE FOLLOWING COVALENT COMPOUNDS-ANSWERSNameChemical dioxideCO2 Carbon(IV) oxide* monoxideN2 ONitrogen(I) oxide* trichloridePCl3 Phosphorus(III) chloride* disulfideC3S2*Hint: Romans numerals are used to tell us the combining power of an the arm and link method to determine the chemical formula for these compounds element is given theidesuffix?

7 The most electronegative (or non-metallic) element.