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
zepelin [54]
3 years ago
12

Numero de oxidacion Fe + O2=Fe2O3

Chemistry
1 answer:
nexus9112 [7]3 years ago
7 0

Fe =0

O2 =0

Fe in Fe2O3 =+3

O in Fe2O3=-2

You might be interested in
When an erythrocyte is removed from circulation the iron ion of hemoglobin?
omeli [17]
Transporting metals, ions, water-insoluble molecules, and hormones. .... When erythrocytes are removed from circulation,
7 0
3 years ago
What type of chemical bond would form between an atom of lithium (Li) and an atom of chlorine (Cl). Explain specifically why thi
Aleksandr-060686 [28]

Explanation:

  • When a bond is formed by transfer of electrons from one atom to another then it results in the formation of an ionic bond.

An ionic bond is generally formed by a metal and a non-metal.

For example, lithium is an alkali metal with atomic number 3 and its electronic distribution is 2, 1.

And, chlorine is a non-metal with atomic number 17 and its electronic distribution is 2, 8, 7.

So, in order to complete their octet lithium needs to lose an electron and chlorine needs to gain an electron.

Hence, both of then on chemically combining together results in the formation of an ionic compound that is, lithium chloride (LiCl).

An ionic compound is formed by LiCl because lithium has donated its valence electron to the chlorine atom.  

  • On the other hand, if a bond is formed by sharing of electrons between the two chemically combining atoms then it is known as a covalent bond.

For example, O_{2} is a covalent compound as electrons are being shared by each oxygen atom.

7 0
3 years ago
Plz HELP ITS SCIENCE!
Alexxx [7]
Cell wall:
-acts like a skin
- most selectively controls what is inside and outside of the cell
-rigid

Cell membrane:
-gives a plant cell
-not rigid
6 0
3 years ago
Read 2 more answers
On the periodic table, what is used to determine the order of elements? (Use your own words? Help please!!!
Angelina_Jolie [31]

Elements are listed in order of increasing atomic number from the left to the right.

4 0
3 years ago
Read 2 more answers
In redox reactions, _____________ occurs when electrons are lost by a molecule. ______________ occurs when electrons are gained
madam [21]

Answer:

Oxidation, Reduction

Explanation:

A redox reaction is a short form for reduction-oxidation.

Reduction is a term which means that electron is gained while oxidation is a term which means that electron Is lost.

The species that gain electron is known as the oxidizing agent while the species losing electrons is known as the reducing agent

6 0
3 years ago
Other questions:
  • Enter a balanced equation for the dissolution of caco3.
    6·1 answer
  • Which is not a functional group<br><br><br>A. Carboxyl <br>B. Halide<br>C. Hydroxyl<br>D. Protein
    12·1 answer
  • Gerald's science teacher mixed room temperature samples of hydrochloric acid and sodium hydroxide in a large beaker. The solutio
    15·1 answer
  • Consider the following equilibrium systems: A⇌2B ΔH o =20.0 kJ/mol Reaction 1 A+B⇌C ΔH o =−5.4 kJ/mol Reaction 2 A⇌B ΔH o =0.0 k
    13·1 answer
  • 4. What coefficients need to be added to the following chemical reaction
    15·1 answer
  • How many neutrons does an element have if its atomic number is 55 and its mass number is 150?
    13·2 answers
  • Label each of the components in the equation below what type of reaction
    5·1 answer
  • If Hydrochloric Acid and Calcium Carbonate were combined would the reaction that occurs be endothermic or exothermic? Why?
    10·1 answer
  • How many mL of methanol would
    5·2 answers
  • Practice
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!