CHEM 120 Exam 3 Study Guide | Introduction
to General, Organic & Biological Chemistry |
Questions and 100%verified answers updated
If an atom loses electrons in a redox reaction, we say this atom was:
a.) oxidized
b.) reduced
c.) none of the above
d.) an oxidizing agent
Correct Answer: oxidized
In the reaction CrO + H₂ → H₂O + Cr, the element being reduced is:
a.) all elements are oxidized
b.) H
c.) Cr
d.) O
Correct Answer: Cr
What is the oxidizing agent in the reaction Fe³⁺ + V → Fe + V³⁺
a.) V³⁺
b.) Fe
c.) V
d.) Fe³⁺
Correct Answer: Fe³⁺
Which of the following molecules is not a hydrocarbon?
a.) Methanol
b.) Propane
,c.) Hexane
d.) Ethane
Correct Answer:Methanol
What molecules contains a triple bond?
Correct Answer:Butyne and Pentyne
What is a key application of hydrocarbons?
Correct Answer: fuel
The COOH group represents which functional group?
a.) Ester
b.) Carbonyl
c.) Either
d.) Carboxyl
Correct Answer: Carboxyl
Alkene
What type of hydrocarbon contains a carbon-to-carbon double bond?
Correct Answer: Alkene
What molecules would be classified as unsaturated hydrocarbon?
Correct Answer: - CH₂=CH₂
- Propyne
What is the name of this organic compound: CH₃CH₂OCH₃ ?
Correct Answer: Ethyl methyl ether
What is the name of this organic compound: CH₃CH₂OCH₂CH₃ ?
Correct Answer:Butanone
, What is the name of this organic compound: CH₃CH₂CH₂CHO ?
Correct Answer:Butanal
What is the name of this organic compound:
CH₃CH₂CH₂COOH ?
Correct Answer: Butanoic acid
What is the name of this organic compound:
CH₃CH₂CH₂CH₂NH ?
Correct Answer: Butyl amine
Molybdenum-99 decays by beta decay emission, resulting in an electron and...
a.) Technetium- 43
b.) Niobium- 99
c.) Niobium- 42
d.) Technetium- 99
Correct Answer:Technetium-99
Tin-126 undergoes electron capture. What will the mass number of the product
of this decay?
Correct Answer:126
What could be considered sources of electromagnetic radiation?
Correct Answer: x-ray emitter
Gamma decay
How many half-lives would occur after 30 minutes if a radioactive material has a
half-life of 10 minutes?
Correct Answer: 3
to General, Organic & Biological Chemistry |
Questions and 100%verified answers updated
If an atom loses electrons in a redox reaction, we say this atom was:
a.) oxidized
b.) reduced
c.) none of the above
d.) an oxidizing agent
Correct Answer: oxidized
In the reaction CrO + H₂ → H₂O + Cr, the element being reduced is:
a.) all elements are oxidized
b.) H
c.) Cr
d.) O
Correct Answer: Cr
What is the oxidizing agent in the reaction Fe³⁺ + V → Fe + V³⁺
a.) V³⁺
b.) Fe
c.) V
d.) Fe³⁺
Correct Answer: Fe³⁺
Which of the following molecules is not a hydrocarbon?
a.) Methanol
b.) Propane
,c.) Hexane
d.) Ethane
Correct Answer:Methanol
What molecules contains a triple bond?
Correct Answer:Butyne and Pentyne
What is a key application of hydrocarbons?
Correct Answer: fuel
The COOH group represents which functional group?
a.) Ester
b.) Carbonyl
c.) Either
d.) Carboxyl
Correct Answer: Carboxyl
Alkene
What type of hydrocarbon contains a carbon-to-carbon double bond?
Correct Answer: Alkene
What molecules would be classified as unsaturated hydrocarbon?
Correct Answer: - CH₂=CH₂
- Propyne
What is the name of this organic compound: CH₃CH₂OCH₃ ?
Correct Answer: Ethyl methyl ether
What is the name of this organic compound: CH₃CH₂OCH₂CH₃ ?
Correct Answer:Butanone
, What is the name of this organic compound: CH₃CH₂CH₂CHO ?
Correct Answer:Butanal
What is the name of this organic compound:
CH₃CH₂CH₂COOH ?
Correct Answer: Butanoic acid
What is the name of this organic compound:
CH₃CH₂CH₂CH₂NH ?
Correct Answer: Butyl amine
Molybdenum-99 decays by beta decay emission, resulting in an electron and...
a.) Technetium- 43
b.) Niobium- 99
c.) Niobium- 42
d.) Technetium- 99
Correct Answer:Technetium-99
Tin-126 undergoes electron capture. What will the mass number of the product
of this decay?
Correct Answer:126
What could be considered sources of electromagnetic radiation?
Correct Answer: x-ray emitter
Gamma decay
How many half-lives would occur after 30 minutes if a radioactive material has a
half-life of 10 minutes?
Correct Answer: 3
