1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vlad1618 [11]
3 years ago
8

Here is a more complex redox reaction involving the dichromate ion in acidic solution: 3N O 2 − + 8H + + C r 2 O 7 2− → 3N O 3 −

+2Cr 3+ + 4 H 2 O Classify each reactant as the reducing agent, oxidizing agent, or neither.
Chemistry
1 answer:
Fantom [35]3 years ago
4 0

Answer:

NO2- is the reducing agent.

Cr2O7_2- is the oxidizing agent.

H+ is neither

Explanation:

Reduction is the gain in electron. A chemical specie that undergoes reduction is called the oxidizing agent.

Oxidation is simply the loss in electrons. A chemical specie that undergoes oxidation is called the reducing agent.

Let us look at the species.

The first specie is the NO2-. In this specie, the oxidation number of nitrogen changed from +3 to +5 in NO3-. Thus we can see that there is more loss of electron to have caused an increase in the oxidation number positively. This shows an oxidation. Hence, NO2- is the reducing agent.

Let us look at the chromium. We can see that the oxidation number of chromium changed from +7 to +3.

Now we can see that it is a decrease and hence, it is a gain of electron and thus it is reduction. This means the first chromium specie is the oxidizing agent.

The hydrogen ion is simply placed there to balance the ions and hence it is neither the oxidizing nor the reducing agent.

You might be interested in
Disease causing bacteria need oxygen to survive.<br> true or false
Ghella [55]

Answer:

true

Explanation:

its a guess

6 0
2 years ago
Read 2 more answers
Does gravity affect the orbit of the international space station
ivanzaharov [21]

Answer:

Explanation:gbbbynuy

B g gyngybfvtfftdtcdt

7 0
3 years ago
Read 2 more answers
Which of the following methods can be used to determine the relative age of rock and strata? Select all that apply.
avanturin [10]

I believe the answer is Archeolegy


4 0
3 years ago
Read 2 more answers
A red car and a blue car collide. What would be an example of Locard's exchange principle in this situation?
Lelu [443]

Answer:

The blue car left paint on the red car

Explanation:

8 0
2 years ago
Determine molar mass of Mn (ClO3)3
goldenfox [79]
M(Mn(ClO3)3)=(54.938)+(35.45x3)+(15.999x9)
M(Mn(ClO3)3)=305.279 g/mol
8 0
2 years ago
Other questions:
  • The theater director offered every member of the drama one vote for which play they preferred to perform. The director found tha
    6·2 answers
  • The melting point of unknown substance A is 15°C and its boiling point is 95°C. Sketch a
    12·1 answer
  • Which of the following sets of units is appropriate for a second order rate constant?
    6·1 answer
  • UuestoNS NIU
    15·1 answer
  • What is the mass of one mole of calcium carbonate
    5·2 answers
  • Why is it more difficult to remove an
    7·1 answer
  • For the results of an experiment to be truly reliable, _____
    6·2 answers
  • Difference between shell and subshell?
    9·1 answer
  • How do photosynthesis and cellular respiration compare to each other
    11·1 answer
  • For the formation of hydrogen iodide, H2(g) + 12(g) - 2HI(g) the value of the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!