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
IceJOKER [234]
3 years ago
12

Which regions on the periodic table can adopt positive and negative oxidation numbers?

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

<span>The region(s) of the periodic table which are made up of elements that can adopt both positive and negative oxidation numbers are the “non-metal” region. As we can see on the periodic table, the elements situated at the right side of the table have two oxidation states, one positive and the other a negative. </span>

You might be interested in
A. element with the highest electronegativity.
Bess [88]

Answer:

Fluorine

Explanation:

Fluorine is assigned the oxidation number of -1 because it attracts the electrons in the bond more strongly than carbon does. Fluorine appears to have an extra electron, -1 oxidation number.

Fluorine is the most electronegative element on the periodic table.

3 0
2 years ago
Read 2 more answers
What are the symbols (in order) for hydrogen, sodium and nitrogen?
Ulleksa [173]

Answer:

H, Na, N

Explanation:

7 0
2 years ago
Read 2 more answers
How did oxygen first enter Earth's atmosphere?
forsale [732]

Answer:

I think c biological processes

8 0
2 years ago
A galvanic (voltaic) cell consists of an electrode composed of zinc in a 1.0 M zinc ion solution and another electrode composed
MariettaO [177]

Answer:

The E°cell for the galvanic cell is 1.56 V.

Explanation:

A galvanic cell is a device that uses redox reactions to convert chemical energy into electrical energy. The chemical reaction used is always spontaneous.

Oxide-reduction reactions, also called redox, involve the transfer or transfer of electrons between two or more chemical species. In these reactions two substances interact: the reducing agent and the oxidizing agent.

The gain of electrons is called reduction and the loss of electrons oxidation. That is to say, there is oxidation whenever an atom or group of atoms loses electrons (or increases its positive charges) and in the reduction an atom or group of atoms gains electrons, increasing its negative charges or decreasing the positive ones.

The species that supplies electrons is the reducing agent (that is, it is that species that oxidizes, yielding electrons and increasing its positive charge, or decreasing the negative one causing the reduction of the other species) and the one that gains them is the oxidizing agent ( that is, it is that species that is reduced, capturing electrons and increasing its negative charge, or decreasing its positive charge, causing oxidation of the other species).

The galvanic cell works as follows: In the anodic half-cell oxidations occur, while in the cathodic half-cell reductions occur. The anode electrode, conducts the electrons that are released in the oxidation reaction, to the metallic conductors. These electrical conductors conduct the electrons and carry them to the cathode electrode; the electrons thus enter the cathode half-cell and the reduction takes place in it.

To determine the oxidizing and reducing agent you must first know the reduction potentials. For this you consult the list of standard reduction potentials. In this list you can see that the semi-reactions that occur with their corresponding potentials are:

Ag⁺ + e⁻ ⇒ Ag E°= 0.80 V

Zn²⁺ + 2 e⁻ ⇒ Zn E° -0.76 V

The species that has the greatest potential for reduction will be the species that will be reduced, that is, it will be the oxidizing agent. In this case, it will be the experience corresponding to silver (Ag). Therefore, to obtain the redox reaction, the half-reaction corresponding to zinc (Zn) must be reversed to be an oxidation, keeping its E ° value constant. Then:

Reduction: Ag⁺ + e⁻ ⇒ Ag E°= 0.80 V

Oxidation: Zn ⇒ Zn²⁺ + 2 e⁻ E° -0.76 V

So: <em>E°cell=Ereduction - Eoxidation</em>

Or what is the same<em> E°cell=Ecathode - Eanode </em>because the reduction always occurs in the cathode and oxidation in the anode.

E°cell=0.80 V - (-0.76) V

<em>E°cell= 1.56 V</em>

Then <u><em>the E°cell for the galvanic cell is 1.56 V.</em></u>

6 0
3 years ago
Which type of internal structure represents a gemstone.
Lemur [1.5K]
Uhhhhhhhhhhhhhhh....
3 0
3 years ago
Other questions:
  • Dichlorosilane is a compound that contains silicon (Si), hydrogen (H), and chlorine (Cl) atoms. It has the chemical formula SiH2
    6·1 answer
  • Which statement about activation energy is true? a. It is not affected by catalysts. b. It has no effect on the rate of the reac
    11·2 answers
  • A box is resting on a table. If an applied is _____ the frictional force, the box Will move sideways along the table
    15·1 answer
  • What passes through the Haversian canal
    11·1 answer
  • Describe how surface area affects the rate of a reaction.
    15·2 answers
  • Which of these events is caused by contact forces?
    15·1 answer
  • SOLVE Use the density formula to solve the following problems. A sample of a substance has a volume of 60.5 mL and a density of
    14·1 answer
  • Diffusion is the movement of solutes from an area of
    6·2 answers
  • How
    10·1 answer
  • What would be the mass in grams of 0.300 moles of the ionic compound formed when magnesium metal reacts with oxygen
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!