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
liberstina [14]
3 years ago
6

Cr + 3fe3+cr3+ + 3fe2+ in the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced,

the oxidizing agent and the reducing agent.
Chemistry
1 answer:
anastassius [24]3 years ago
8 0
Element Cr goes from Cr --> Cr³⁺
element Fe goes from Fe³⁺ --> Fe²⁺
oxidation reactions are when the species gives out electrons and its oxidation number increases.
reduction reactions are when the species take in electrons and its oxidation number reduces.
Cr : oxidation number of Cr - 0 and Cr³⁺ - +3
Theres an increase in oxidation number from 0 to +3. Therefore its an oxidation reaction. Cr gets oxidised. 
Fe : oxidation number of Fe³⁺ - +3 and Fe²⁺ - +2
There's a decrease in oxidation number of Fe from +3 to +2, therefore its a reduction reaction and Fe gets reduced.
         
Cr reduces Fe - Cr is the reducing agent 
Fe oxidises Cr - Fe is the oxidising agent
You might be interested in
Question 11: How does the energy of a photon emitted when the electron moves from the 3rd orbital to the 2nd orbital compare to
hodyreva [135]

Answer:

Explanation:

The energy of a photon emitted when the electron moves from the 3rd orbital to the 2nd orbital is exactly same as the energy of a photon absorbed when the electron moves from the 2nd orbital to the 3rd orbital

3 0
3 years ago
When heated, allyl aryl ethers and allyl vinyl ethers undergo a reaction called a Claisen rearrangement, a concerted reorganizat
Alex_Xolod [135]

Answer:

See explanation below

Explanation:

I found a picture of this exercise, to show you how to do this problem.

The first picture is the compound, and the second is the mechanism of reaction to do this claisen rearrangement.

Hope this helps

5 0
3 years ago
Explain why the column of a fractional distillation apparatus should be aligned as near to the vertical as possible
____ [38]
<span><span>The column of a fractional distillation apparatus should be aligned vertical to get better separation because the column is essentially longer. It will prevent channeling in the column. </span>Therefore column efficiency will be higher if it is as vertical as possible instead of tilted.<span> Distillation is a process used to separate a mixture of two (or more) components. In a typical </span>fractional distillation, a liquid mixture is heated in the distilling flask and the process begins.</span>
7 0
3 years ago
Question: In 2009, Jamaica's Usain Bolt set the World Record for the 100 meter dash with a time of 9.58 seconds. Using the appro
vladimir2022 [97]
PLEASE TELL ME IF YOU GET IT
7 0
3 years ago
Marshall determines that a gas has a gage pressure of 276 kPa. What's the absolute pressure of this gas?
Mariana [72]
C.... 376 tbh just took the test and was right
5 0
3 years ago
Read 2 more answers
Other questions:
  • If you have an atom with 8 protons, 9 neutrons and 10 electrons, what is its mass number?
    5·1 answer
  • Sound waves are mechanical waves in which the particles in the medium vibrate in a direction parallel to the direction of energy
    15·2 answers
  • The reaction X 2 (g) m 2 X(g) occurs in a closed reaction vessel at constant volume and temperature. Initially, the vessel conta
    14·1 answer
  • If a human cell were to increase the amount of cholesterol embedded within its plasma membrane, which of the following would mos
    14·2 answers
  • An element's atomic number is the _____?
    7·2 answers
  • Which step in the Scientific Method should be done after asking a question and before developing a hypothesis? A)analyze the dat
    5·2 answers
  • At a certain temperature, a mixture of 2 gases, 11.2 g of oxygen and 104.75 of krypton exert a total pressure of 4.25 atm. What
    12·1 answer
  • Consider the voltaic cellZn(s) + Cu{2+}(aq)--&gt; Zn{2+}(aq)+Cu(s){}=chargeUnder standard conditions, what is the maximum electr
    11·1 answer
  • A 65.0-gram sample of some unknown metal at 100.0° C is added to 177.1 grams of water at 24.5° C. The temperature of the water r
    8·1 answer
  • What causes the energy transformation that occurs when the brake pads on a bicycle
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!