COVALENT

COVALENT COMPOUNDS Chemistry 332 2 Unit 4 ( COVALENT Compounds) 1. Write the electron dot structure (Lewis Dot Structure) for COVALENT compounds or ions. 2. Use electronegativity to determine the polarity of a bond or molecule. 3. Given the formula of a COVALENT compound, write its correct name ; given the name of a COVALENT compound, write its formula. 4. Describe the attractive forces between ions, polar molecules, and nonpolar molecules. Unit 4 ( COVALENT Compounds) COVALENT Bond, Octet Rule, Lewis Dot Structure/Intramolecular Bond, Intermolecular Force, Polar, Non-polar, Solubility 3 COVALENT COMPOUNDS COVALENT compounds are made from two non-metals and so don t follow the normal ionic rules. You can tell if a compound is COVALENT because it has prefixes modifying the species names. These species tell you exactly how many atoms are in the COVALENT compound. The prefixes are 1 = mono 2 = di 3 = tri 4 = tetra 5 = penta 6 = hexa 7 = hepta 8 = octa 9 = nona 10 = deca All you have to do is write the species in the compound together, and add a subscript based on the numbers above: nitrogen dioxide: NO2 dinitrogen monoxide: N2O phosphorus pentachloride: PC15 sulfur hexafluoride: SF6 diphosphorus pentoxide: P2O5 Most organic compounds that contain alcohol (R-OH) or carboxylic acid (R-COOH) funct

Unit 4 (Covalent Compounds) 1. Write the electron dot structure (Lewis Dot Structure) for covalent compounds or ions. 2. Use electronegativity to determine the polarity of a bond or molecule. 3. Given the formula of a covalent compound, write its correct name; given the name of a covalent compound, write its formula. 4.

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