Homework2 - Version 212 – Homework 2 – Sutcliffe –...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Version 212 – Homework 2 – Sutcliffe – (53980) 1 This print-out should have 17 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. Solubility Rules can be seen in Table 5.9 in your book or you may download a pdf from Blackboard, under COurse Documnents, Useful Items. NOTE FOR Q9: We’re looking for the most commonly used steps, but they might not be listed in the order they are done. 001 10.0 points Use electron-dot notation to demonstrate the formation of an ionic compound involving the elements Na and S. 1. b Na + b b b b b b b S-→ Na + + b b b b b b b b S −-→ NaS 2. b Na + b Na + b Na + b b b b b S-→ Na + + Na + + Na + + b b b b b b b b S 3 −-→ Na 3 S 3. b b b Na + b b b b b S-→ Na 3+ + b b b b b b b b S 3 −-→ NaS 4. b b b Na + b b b Na + b b b b b b S + b b b b b b S + b b b b b b S-→ Na 3+ +Na 3+ + b b b b b b b b S 2 − + b b b b b b b b S 2 − + b b b b b b b b S 2 −-→ Na 2 S 3 5. b b Na + b b b b b b b S + b b b b b b b S-→ Na 2+ + b b b b b b b b S − + b b b b b b b b S −-→ NaS 2 6. b b Na + b b b b b b S-→ Na 2+ + b b b b b b b b S 2 −-→ NaS 7. b b Na + b b Na + b b Na + b b b b b S + b b b b b S-→ Na 2+ + Na 2+ + Na 2+ + b b b b b b b b S 3 − + b b b b b b b b S 3 −-→ Na 3 S 2 8. b Na + b Na + b b b b b b S-→ Na + + Na + + b b b b b b b b S 2 −-→ Na 2 S correct 9. b b b Na + b b b b b b b S + b b b b b b b S + b b b b b b b S-→ Na 3+ + b b b b b b b b S − + b b b b b b b b S − + b b b b b b b b S −-→ Na 2 S 3 10. None of these Explanation: b Na gives up an electron to form the Na + cation and b b b b b b S acquires two electrons to form the b b b b b b b b S 2 − anion: b Na + b Na + b b b b b b S-→ Na + + Na + + b b b b b b b b S 2 −-→ Na 2 S 002 10.0 points SO 2 − 4 is more/less polar than SO 2 − 3 because 1. less; the four polar S O bonds in SO 2 − 4 are symmetrical and cancel the dipole moments. correct 2. more; the four polar S O bonds in SO 2 − 4 are arranged non-symmetrically leaving a net dipole moment....
View Full Document

This homework help was uploaded on 04/16/2008 for the course CH 305 taught by Professor Sutcliffe during the Spring '08 term at University of Texas at Austin.

Page1 / 5

Homework2 - Version 212 – Homework 2 – Sutcliffe –...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online