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
vladimir2022 [97]
2 years ago
15

What is the sum of all the oxidation numbers in any compound

Chemistry
1 answer:
andrey2020 [161]2 years ago
4 0

Answer:

The sum of all the oxidation numbers for neutral compound = 0

For charged  species sum of oxidation no. of all the elements is not equal to zero either positive or negative.

Explanation:

In case for neutral compounds sum of total oxidation no. of all elements is equal to zero.

Let us consider for

          K₂Cr₂O₇ (Potassium dichromate) the sum of total oxidation state of elements is equal to zero.

Oxidation state of potassium = +1, For Chromium = +6 & for oxygen = -2        

So total oxidation number

                     2 x (+1) + 2 x (+6) + 7 x (-2)

                 = +14 - 14 = 0.

In case for charged species.

Example for

Ammonium ion (NH₄⁺) total charge = +1

∵ O.N for nitrogen = -3 and for hydrogen = +1

∴ Sum of oxidation numbers = 1 x (-3) + 4 x (+1)

                                             = +1

For Carbonate ion (CO₃²⁻) total charge = -2

Oxidation number for carbon = +4 and for oxygen = -2

(∵Oxygen is more electronegative than carbon)

∴  Sum of oxidation numbers = 1 x (+4) + 3 x (-2) = -2

You might be interested in
Number of
Sever21 [200]

Answer:1:En química, el número másico o número de masa es la suma del número de protones y el número de neutrones del núcleo de un átomo. Se simboliza con la letra A (el uso de esta letra proviene de alemán Atomgewicht, que quiere decir peso atómico, aunque sean conceptos distintos que no deben confundirse).

2:

4 0
3 years ago
Why is a molecule of CO2 nonpolar even though the bonds between the carbon atom and the oxygen atoms are polar?
schepotkina [342]
The correct answer is option 1. Carbon dioxide is nonpolar because the shape of the molecule  is symmetrical. It is a linear molecule where the oxygen atoms are symmetrical on each end. CO2 molecule do not have a region of unequal sharing.
7 0
2 years ago
Give two reasons why scientists use the scientific method
forsale [732]
They use it because it's standerize and evidence vase
6 0
3 years ago
Which statement is true about activision energy
puteri [66]

Answer:

can you provide more to the question

Explanation:

6 0
3 years ago
Which statement correctly describes metallic bonds?
lions [1.4K]

Answer: D

Explanation:

the atom of the metal loses one electron which becomes delocalised and is attragted by the positive nucleus leading to formation of metallic bond.

5 0
3 years ago
Other questions:
  • I don’t understand how to do this
    15·1 answer
  • How many experimental trials are needed before a hypothesis can be accepted as true ?
    6·2 answers
  • Write each element and elements of atoms of the compound Na2PO3F
    10·1 answer
  • Why is a control group important in an experiment?
    6·1 answer
  • Electron configuration of Mo
    14·1 answer
  • WHAT IS A ROCK?
    15·2 answers
  • When pressure, volume, and temperature of a gas are known, the ideal
    6·1 answer
  • Need help with cemester​
    13·1 answer
  • A NaOH (aq) stock solution was created by dissolving 3.88 g NaOH in water to create a 100.00 mL solution. What is the concentrat
    5·1 answer
  • Which weather condition is NOT associated with warm fronts??
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!