100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
Previously searched by you
CHEM 120 Week 8 Final Exam Review (Version 1), CHEM 120: Introduction to General, Organic & Biological Chemistry with Lab, Verified and Correct Answers, Chamberlain College of Nursing.$15.49
Add to cart
CHEM 120 Week 8 Final Exam Review (Version 1), CHEM 120: Introduction to General, Organic & Biological Chemistry with Lab, Verified and Correct Answers, Chamberlain College of Nursing.
26 views 0 purchase
Course
CHEM 120, Chamberlain college of Nursing
Institution
CHEM 120, Chamberlain College Of Nursing
CHEM 120 Week 8 Final Exam Review (Version 1), CHEM 120: Introduction to General, Organic & Biological Chemistry with Lab, Verified and Correct Answers, Chamberlain College of Nursing.
CHEM 120 Week 8 Final Exam Review
Course Number:CHEM120
Course Title:Introduction to General,Organic & Biological Chemistry with Lab
Well Explained Answers
Secure high grade
Best feedback (rated) document by students
, CHEM 120: Final Review
1. Question: Know what is the atomic number, atomic mass, protons, neutrons &
electrons
Atomic number – is the number of protons in the nucleus of an atom of any
element
Atomic mass – is expressed in amu; is the wighted average
Protons – are positively charged particles in the nucleus
Neutron – are neutral, have no electrical charge
Electrons – are negatively charged particles in the nucleus
Atomic number = number of protons
Atomic number – (minus) atomic mass = neutrons
2. Question: Describe the shapes of molecules H2S, CBr4, & PCl3
H2S – bent
Number of bonded atoms: 2
Number of lone pairs: 2
Number of electron sets: 4
CBr4 – tetrahedral
Number of bonded atoms: 4
Number of lone pairs: 0
Number of electron sets: 4
PCl3 – pyramidal
Number of bonded atoms: 3
Number of lone pairs: 1
Number of electron sets: 4
3. Question: Calculating types of bonding (ionic, covalent, nonpolar covalent)
Subtract the smaller EN value from the larger EN value
0 – 0.4 = nonpolar covalent
> (greater than) 0.4 – 1.7 = polar covalent
> (greater than) 1.7 = ionic bond
Ionic bonds – is a bond that forms when electrons is being transferred from one form to
another form, which results in positive & negative ions
Covalent bond – a bond formed when atoms share electrons
Nonpolar covalent bonds – when the EN is very similar between 2 atoms
Polar covalent – when the EN is different between 2 atoms
4. Question: Non – polar covalent bonds & polar covalent bonds & electron sharing
Bonding electron pair – the shared pair of electrons in covalent bonds
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller HIGHSCORE. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.49. You're not tied to anything after your purchase.