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
sweet-ann [11.9K]
3 years ago
7

What happens to iron when iron oxide becomes elemental iron?

Chemistry
2 answers:
Ilya [14]3 years ago
6 0
The appropriate response is Reduction. It is a chemical reaction that includes the picking up of electrons. It alludes to the side that acknowledges electrons. At the point when iron responds with oxygen, it frames a concoction called rust. In that case, the iron is oxidized and the oxygen is lessened.
Ierofanga [76]3 years ago
6 0

Answer:

Iron gets reduced from a +3 oxidation state to 0

Explanation:

The decomposition of iron oxide to elemental can be represented by the following equation:

2Fe_{2} O_{3} (s)------ 4Fe(s) + 3O_{2} (g)

In iron oxide (Fe2O3), the oxidation state of iron is +3 while that of oxygen is -2. Therefore, the above reaction is a redox (reduction oxidation reaction).

Here, iron in iron oxide gains 3 electrons and gets reduced from Fe3+ to Fe(0). Whereas, the oxygen loses 2 electrons and gets reduced from O2- to O(0).

The half reactions can be represented as:

Reduction:

Fe^{3+} + 3e- ------- Fe

Oxidation:

O^{2-} -------O + 2e-

You might be interested in
.5 moles of sodium chloride is dissolved in 2 L of water. What is the molarity of the solution
suter [353]

Answer:

its ,5

Explanation:

i just did it :)

8 0
3 years ago
Explain the Doppler effect using light. Why is the Doppler effect important in astronomy?
Alexeev081 [22]
Doppler effect is the compression or extension of a sound wave, which causes a change in its wavelength / frequency (and so its sound).
Explanation: It is defined as the effect produced by a moving source of waves in which there is an upward shift in frequency for observers, the source is moving towards and downward shift of frequency from which the source is moving away. used to tell if an object in space is moving toward or away from us.
8 0
3 years ago
Read 2 more answers
What volume of a 2.25 M sodium chloride solution will contain 4.58 moles of sodium chloride
Rzqust [24]

Answer:

Option E. 2.04 L

Explanation:

Data obtained from the question include:

Molarity of NaCl = 2.25 M

Mole of NaCl = 4.58 moles

Volume =..?

Molarity is simply defined as the mole of solute per unit litre of the solution. It is represented mathematically as:

Molarity = mole /Volume

With the above formula, we can obtain the volume of the solution as follow:

Molarity = mole /Volume

2.25 = 4.58/volume

Cross multiply

2.25 x volume = 4.58

Divide both side by 2.25

Volume = 4.58/2.25

Volume = 2.04 L

Therefore, the volume of the solution is 2.04 L

6 0
3 years ago
Which of the following is an example that includes evidence of a chemical reaction?
Elenna [48]
It is c took the test
6 0
2 years ago
How many s electrons are there in potassium?​
Pani-rosa [81]

Answer: 19

Explanation:

In order to write the Potassium electron configuration we first need to know the number of electrons for the K atom (there are 19 electrons). When we write the configuration we'll put all 19 electrons in orbitals around the nucleus of the Potassium atom.

8 0
3 years ago
Other questions:
  • The tendency of an atom to attract a pair of electrons that will bond is known as __________.
    9·1 answer
  • A rock sample contains 4.5g of Potassium-40 and 31.5g of its daughter isotope (Argon-40). How old is the rock sample if Potassiu
    9·1 answer
  • When an electron loses electrons it becomes more 1 negative. 2 none of the above. 3 neutral 4 positive.
    8·2 answers
  • 1. The "3" in 3 CaCl2 is called the:
    12·1 answer
  • Calculate the number of kilojoules to warm 125 grams of iron from 23.5 degrees Celcius to 78 degrees Celcius
    12·1 answer
  • Alpha-tocopherol is another name for ...
    13·1 answer
  • Can someone please help me understand this?
    12·1 answer
  • Please help...<br> CaS cation and anion<br> ZnCl2 cation and anion<br> Cu2CrO4 cation and anion
    7·1 answer
  • How do you use chromatography to separate mixtures
    8·1 answer
  • How could the student obtain zinc chloride solution from the reaction mixture when all the hydrochloric acid has reacted?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!