i need help with this worksheet

Name___________________________ Date____________________________ Period___________________________ Covalent Bonding WS 6 1. The bonds between the following pairs of elements are covalent. Arrange them according to polarity; name the most polar bond first. The greate r the differen ce in electron egativity , the more polar the bond is. This is no t multiple choice. Show you r math as well. a. H – Cl d. H – O b. H – C e. H – H c. H – F f. S – Cl 2. Arrange the following bonds in order of increasing ionic character. The greate r the differ ence in electron egativity, the more ionic character the bond has. This is not multiple choice. Show you r math as well. a. Cl –F d. C – H b. N – N e. S – O c. K – O f. Li – F 3. Base d on the information about molecular shapes, which of these molecules would you exp ect to be polar? (Circle your answer(s) and draw t he shapes) a. SO 2 c. H 2S b. CO 2 d. BF 3 4. Which compound in each pair exhibits the stronger intermolecular hydrogen bonding? Thi s is n ot multiple choice . Think about differences in electronegativity again. (Ci rcle you r answer IN EACH PA IR ) a. H2S, H 2O b. HCl, HF c. HBr, HCl d. NH 3, H 2O 5. What is a hydrogen bond? 6. Why do compounds with stronger molecular attractive forces have higher boiling points than compounds with weak intermolecular attractive forces? 7. Expla in why ea ch elect ron dot structure is incorrect. There may be multiple reasons. Replace each structure with on that is more acceptable. A. B. C.