Chem 103 Portage Learning Exam 5 |
Questions and Answers Graded A+
M5: Exam - Requires Respondus LockDown Browser + Webcam
Question 1 Show the determination of the charge on the ion formed by the Se 34 atom.
Answer:
Se34 (nonmetal = gain electrons) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4 gain 2e
→ Se-2 Question 2
H = 2.1 I = 2.7
Li = 1.0 Be = 1.5 B = 2.0 C = 2.5 N = 3.0 O= 3.5 F = 4.0
Na = 1.0 Mg = 1.2 Al = 1.5 Si = 1.8 P = 2.1 S = 2.5 Cl = 3.0
K = 0.8 Ca = 1.0 Ga = 1.6 Ge = 1.8 As = 2.0 Se = 2.4 Br = 2.8
Using the electronegativities from the table above, show the determination of the polarity of each different type of bond in the following molecule
Answer: H-O bond electronegativity difference = 3.5 - 2.1 = 1.4 1.6 - 0.5 bond is Polar
N-O bond electronegativity difference = 3.5 - 3.0 = 0.5 1.6 - 0.5 bond is Polar
Question 3 On a piece of scratch paper, draw the Lewis structure for the PO 3-3 ion. Then choose the correct Lewis structure for PO 3-3 from the options listed
below.
Answer:
(A) Question 4
On a piece of scratch paper, draw the Lewis structure for the H 3PO3. Then choose the correct Lewis structure for H 3PO3 from the options listed below.
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 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 nursehailey. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £8.91. You're not tied to anything after your purchase.
