Question

3. If two atoms with different electronegativities are shanng electrons, then how does this influence the sharing? Which atom pulls the electrons more tightly than the other? 4. In a polar bond, which element will be slightly positive and which negative? 5. In the bonds below indicate which atom is partially negative (8-) and partially positive (8+). H-C Br-H P-CL 6. Now make a prediction. Using what you know about bond polarity, propose a reason for the following observations: ethanol - soluble in water hexane - not soluble in water H H H H H H ¢ ¢ H- ¢ ¢ ¢--0-H ¢ ¢ HH

Answer 1

3. if two aton 't two atoms sharing and election between on it foam a bood called covalent bood, cober a covalent alast bood forbed betrocer a ub? two unlike. Do the bie too atores of different electio negaty gativities the boodine electron is d'osplaced as move od shading electron pain is more aus placed tocoasds the more electronegative atons such a bood is called polas covalent bond. 7 Is polar bood the atore which is noore electsonegative bas slightly begative charge electronegative and the ater slightly which is less positive abarge bas eg: HE F is more electronegative thash 50

more electronegtive than t B -H Bo is wore electronegative than H ele is noore electronegative thous P etbausol aten e both ethasol et coated are polas molecule Cacooiding solubility toute like dissolves the I bas oH gp the o bas slightly coon egative change torro beateges bond with the His wated is having slightly positive charge , so due to forroarion of bydrogen bood it is soluble is coater. Is the case of bexabe H c H c- H H H H ċ-ċ-c-c-H H - forno Hydrogen b case of bexabe it cannot . because Hydrogen bood with water bacoorou because hen weer bigbly electronegative bood is forroed between bigbly electron soluble is aator abous and H so it is bot