Docsity
Log inSign up
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search Store documents

The best documents sold by students who completed their studies

Search through all study resources
Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

University Rankings

Discover the best universities in your country according to Docsity users

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

From our blog

Exams and Study
Go to the blog

Chemistry Exam: Redox, Stoichiometry, and Molecular Structures - Test 4 (CHEM 1110 Fall 20, Exams of Chemistry

Roane State Community CollegeChemistry
Prof. James B. Condon

A chemistry exam for dr. Condon's sections of chem 1110 fall 2001. The exam covers various topics including redox reactions, stoichiometry, and molecular structures. Students are required to identify the correct answers for each question based on the provided information.

Typology: Exams

Pre 2010

Uploaded on 08/19/2009

koofers-user-30s
koofers-user-30s 🇺🇸

10 documents

1 / 5

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
CHEM 1110 Fall 2001 - Test 4 Page 1
CHEM 1110 Fall 2001 - Test 4 for Dr. Condon’s sections
1. Which of the following is a redox reaction?
a. LiH + H2O ! LiOH + H2
b. AgNO3(aq) + NaCl(aq) ! AgCl(s) + NaNO3(aq)
c. HCl + KOH ! KCl + H2O
d. AgCl(s) + 2NH3(aq) ! Ag(NH3)2Cl(aq)
e. CaO(s) + CO2(g) ! CaCO3(s)
In the following, questions 2 through 6, x is the stoichiometric coefficient that is not provided.
2. What is(are) the expected product(s) from the reaction:
Mg + xS8 ! ?
a. MgS8b. Mg2S c. MgS2 + Mg6S d. Mg3S e. MgS
3. What is(are) the expected product(s) from the reaction:
P4 + xF2 ! ?
a. PF2 and PF6b. P2F c. PF3 and PF5d. P4F2e. FP and FP7
4. What products are obtained when sulfur reacts with oxygen?
S8 + xO2 ! ?
a. SO and SO3b. SO2 and SO3c. SO2 and SO6d. SO2 and S2O e. SO and SO2
5. What product(s) is(are) obtained when nitrogen reacts with hydrogen?
N2 + xH2 ! ?
a. NH3 and NH5b. NH5c. N2H2 d. HN3e. NH3
pf3
pf4
pf5

Partial preview of the text

Download Chemistry Exam: Redox, Stoichiometry, and Molecular Structures - Test 4 (CHEM 1110 Fall 20 and more Exams Chemistry in PDF only on Docsity!

CHEM 1110 Fall 2001 - Test 4 for Dr. Condon’s sections

  1. Which of the following is a redox reaction?

a. LiH + H 2 O! LiOH + H 2

b. AgNO 3 (aq) + NaCl(aq)! AgCl(s) + NaNO 3 (aq)

c. HCl + KOH! KCl + H 2 O

d. AgCl(s) + 2NH 3 (aq)! Ag(NH 3 ) 2 Cl(aq)

e. CaO(s) + CO 2 (g)! CaCO 3 (s)

In the following, questions 2 through 6, x is the stoichiometric coefficient that is not provided.

  1. What is(are) the expected product(s) from the reaction:

Mg + xS 8!?

a. MgS 8 b. Mg 2 S c. MgS 2 + Mg 6 S d. Mg 3 S e. MgS

  1. What is(are) the expected product(s) from the reaction:

P 4 + xF 2!?

a. PF 2 and PF 6 b. P 2 F c. PF 3 and PF 5 d.^ P 4 F 2 e.^ FP and FP 7

  1. What products are obtained when sulfur reacts with oxygen?

S 8 + xO 2!?

a. SO and SO 3 b.^ SO 2 and SO 3 c.^ SO 2 and SO 6 d.^ SO 2 and S 2 O^ e.^ SO and SO 2

  1. What product(s) is(are) obtained when nitrogen reacts with hydrogen?

N 2 + xH 2!?

a. NH 3 and NH 5 b. NH 5 c. N 2 H2 d. HN 3 e. NH 3

  1. What product(s) is(are) obtained when calcium hydride reacts with water?

CaH 2 + xH 2 O!?

a. CaH 4 O 2 b. CaH 3 O c. CaO + H 2 O 2 d. CaOH + H 2 O 2 e. Ca(OH) 2 + H 2

  1. Which of the following is the Lewis dot structure for ethene (H 2 CCH 2 )? a. b. c.

d. e.

  1. Which of the following has at least one lone (unshared, non-bonding) pair of electrons about the central atom? a. SO 3 b. SF 6 c. HCCH d. CH 2 Cl 2 e. IF 2!
  2. Which of the following has at least one triple bond? a. SO 2 b. CO 2 c. O 2 d. H 2 SO 4 e. HCN (For H 2 SO 4 use the sequence: (HO) 2 SO 2 , i.e. the Hs are bonded to Os and all four O are bonded to S.)
  3. Which of the following has a resonance structure? a. CO 32!^ b. CH 4 c. H 2 CCH 2 d. H 2 SO 4 e. SF 5
  4. Which of the following has more than 8 electrons about the central atom? a. HCN b. I 3!^ c. NH 3 d. H 2 SO 4 e. CH 2 F 2
  1. What is the geometry for the molecule SF 6? a. tetrahedral b. trigonal pyramid c. bent 120° d. octahedral e. bent 108°
  2. What is the hybrid for carbon in the molecule HCCH? a. sp b. sp^2 c. sp^3 d. sp^3 d e. sp^3 d^2
  3. In which of the following molecules is there hindered rotation? a. CH 2 F 2 b.^ H 3 CCF 3 c.^ H 3 CCH 3 d.^ H 2 CCH 2 e.^ HCCH

1.a 2.e 3.c 4.b 5.e 6.e 7.d 8.e 9.e 10.a 11.b 12.b 13.e 14.a 15.c 16.c 17.a 18.d 19.a 20.d