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
Vika [28.1K]
4 years ago
6

How to determine oxidation numbers

Chemistry
1 answer:
nadezda [96]4 years ago
7 0

Answer:

1. The oxidation number of a free element is always 0.

2. The oxidation number of a monatomic ion equals the charge of the ion.

3. The oxidation number of H is +1, but it is -1 in when combined with less electronegative elements.

4. The oxidation number of O in compounds is usually -2, but it is -1 in peroxides.

Explanation:

You might be interested in
How often must opened containers of peroxide-formers be tested for peroxide formation?.
Iteru [2.4K]

Answer:

After every 6 months opened containers of peroxide formers will be tested.

Explanation:

Opened containers from which peroxide formation take place will be tested after every 6 months for safe storage. And for unopened container the test will be conducted for peroxide formation is after 12 months from manufacturing expiry date or from receiving date.

Learn more about per-oxide formation on:

brainly.com/question/28294719

#SPJ4

8 0
1 year ago
Ionic compounds conduct electricity in the solid state true or false​
antoniya [11.8K]
<h3>Answer: False</h3>

In solid form, ionic compounds do not conduct electricity. Ionic compounds will conduct electricity when melted to their liquid state. This is due to the electrons being locked in place when in solid form, but liquid form allows for the electrons to move freely.

6 0
3 years ago
How many atoms are in an Apple
miss Akunina [59]

Answer:10^27 atoms in an apple

Explanation:

3 0
3 years ago
What is the energy of an electromagnetic wave with a electromagnetic wave with a frequency of 3 * 10 Hz ?
Olin [163]

Answer:

E=1.989*10^{-32}J

Explanation:

From the question we are told that:

Frequency f=3 * 10 Hz

Generally the equation for Energy of an electromagnetic wave is mathematically given by

 E=hf

Where

  h=Planck's constant

  h=6.62607015 * 10^{-34}

Therefore

 E=6.62607015 * 10^{-34}*3 * 10

 E=1.989*10^{-32}J

8 0
3 years ago
Which state of matter is characterized by having an indefinite shape, but a definite volume?.
harkovskaia [24]

Answer:

A liquid

Explanation:

Liquids has an indefinite shape, which means it could change from one shape to another. For example, if you pour water into a rectangular fish tank. The shape of the liquid changes into a rectangle. Definite volume means its volume is consistent and that it is unchangeable. If you fill the rectangular fish tank with water, the volume of the water stays the same even though it changes shape.

Hope this helps.

7 0
3 years ago
Other questions:
  • The pH at the equivalence point will be a. less than 7.00 b. equal to 7.00 Allohalineup of a sto quivalence point of a titration
    8·1 answer
  • Help I really need to understand this please show how you do it !!
    12·1 answer
  • Now starting with lithium, look at its electron configuration. Then look at all eight elements in the second period from lithium
    9·1 answer
  • An empty graduated cylinder has a mass of 11.4g.When it is filled with an unknown liquid to the 45.2 mL mark the cylinder and th
    14·1 answer
  • What are inner transition metals composed of?
    14·2 answers
  • Which natural resource is limited in supply?
    7·2 answers
  • Compare and contrast the daughter cells of mitosis and meiosis.
    5·1 answer
  • Give the half equation to show what happens to oxygen when it is rusting
    10·1 answer
  • Riddles, I speak without a mouth and hear without ears. I have no body, but I come alive with wind. What am I? Answer will be to
    10·2 answers
  • A carbon dioxide molecule travels at 57.0 m/s at a certain temperature. At the same temperature, find the velocity of an oxygen
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!