Question : 1.              Which of the following statements regarding oxidation-reduction reactions correct? A)Oxidation-reduction : 1335544

1.              Which of the following statements regarding oxidation-reduction reactions is correct?

A)Oxidation-reduction reactions involve sharing electrons.

B)Oxidation can occur without reduction.

C)You can tell that a substance is oxidized if it loses electrons.

D)You can tell that a substance is reduced if its oxidation number increases.

E)None of these statements is correct.

 

2.              All of these statements concerning oxidation are correct except that

A)oxygen is necessary for oxidation to take place.

B)the oxidizing agent receives electrons from another species.

C)oxidation must accompany reduction.

D)the oxidizing agent increases the oxidation number of another element.

E)the oxidation of a metal produces positive ions.

 

3.              Which one of the following reactions is an example of an oxidation-reduction reaction?

A)BaO(s) + CO2(g) ? BaCO3(s)

B)H2(g) + F2(g) ? 2HF(g)

C)CaCO3(s)  ? CaO(s) + CO2(g)

D)HCl(aq) + NaOH(aq) ? NaCl(aq) + H2O(l)

E)Ba2+(aq) + SO42–(aq) ? BaSO4(s)

 

4.              Which of the following reactions is not an oxidation-reduction reaction?

A)C(s) + CO2(g) ? CO2(g)

B)CO(g) + Cl2(g) ? COCl2(g)

C)2H2O2(l) ? 2H2O(l) + O2(g)

D)CaCO3(s) + 2HCl(aq) ? CaCl2(aq) + CO2(g) + H2O(l)

E)2HI(g) ? H2(g) + I2(g)

 

5.              When a strip of zinc metal is placed in a blue aqueous solution of copper(II) sulfate, the surface of the zinc becomes coated with a reddish solid, and the zinc begins to dissolve to form aqueous zinc sulfate.  Which of the following statements regarding this reaction is correct?

A)The copper(II) is being oxidized.

B)The zinc is being reduced.

C)The sulfate ion is being reduced.

D)The solution will lose its blue color as the reaction progresses.

E)The reaction described is nonspontaneous.

 

6.              When a piece of copper wire is placed in a colorless solution of silver nitrate, the surface of the wire becomes coated with a shiny silvery material, and the copper begins to form aqueous copper(II) nitrate, which is blue.  Which of the following statements regarding this reaction is correct?

A)The copper(II) is being oxidized.

B)The silver ion is being oxidized.

C)The nitrate ion is being reduced.

D)The solution will become more blue as the reaction progresses.

E)The reaction described is nonspontaneous.

 

7.              Consider the following reaction:

Mg(s) + ZnSO4(aq) ? MgSO4(aq) + Zn(s)

Which of the following statements regarding this reaction is correct?

A)Magnesium is neither oxidized nor reduced.

B)The sulfate ion is reduced.

C)Zinc is the reducing agent.

D)Magnesium is the oxidizing agent.

E)Zinc gains two electrons.

 

8.              Consider the following reaction:

Mn(s) + CuSO4(aq) ? MnSO4(aq) + Cu(s)

Which of the following statements regarding this reaction is correct?

A)Manganese is neither oxidized nor reduced.

B)The sulfate ion is oxidized.

C)Copper is the reducing agent.

D)Manganese is the oxidizing agent.

E)Each copper gains two electrons.

 

9.              Consider the following reaction:

Mg(s) + NiSO4(aq) ? MgSO4(aq) + Ni(s)

Which of the following statements regarding this reaction is correct?

A)Each magnesium atom gains two electrons.

B)The sulfate ion is reduced.

C)Nickel ion is the oxidizing agent.

D)Magnesium is reduced.

E)Each nickel ion loses two electrons.

 

10.              In which of the following choices is the oxidation number incorrect?

A)Fe2+(aq); oxidation number = 2+D)Cu2+(aq); oxidation number = 2+

B)Cl?(aq); oxidation number = 1–E)C(s); oxidation number = 0

C)H2(s); oxidation number = 1+

 

 

Page 1

Place your order
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more