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
DanielleElmas [232]
3 years ago
13

What is the oxidation number for CO2

Chemistry
1 answer:
anzhelika [568]3 years ago
7 0

Answer:

+4

Explanation:

The oxidation number of C in carbon dioxide (CO2) is (rules 1 & 2): 0 + (2 x 2) = +4 [Check (rule 3): +4 + 2(-2) = 0] The oxidation number of C in methane (CH4) is (rules 1 & 2): 0 – (4 x1) = -4 [Check (rule 3): -4 + 4(-1) = 0].

You might be interested in
The most unusual characteristic of Uranus is _____.
fiasKO [112]

Answer:

the axis is tilted at 98 degrees

Explanation:

Uranus is blue, not green; it has an atmosphere of hydrogen and helium, not methane.  While it does have an icy cold temperature, that's not a very unusual characteristic for an outer planet.  However, the tilt of the axis is unusual; no other planet is tilted almost completely on its side!

6 0
3 years ago
Which item has the most thermal energy?
Ksju [112]

Answer:

1L of hot water just below the Boling point

Explanation:

asking questions is best to learn please ask more questions

3 0
3 years ago
Read 2 more answers
How can you tell that a chemical change has occurred?
Alik [6]

A. The products of the change are different from the starting

substances.

<u>Explanation:</u>

Whenever there is a physical change it may just affect the phase change but the properties remains the same. Whenever there is an occurrence of a chemical change, it was indicated by some of these things such as,

  • The products are exactly different from the products.
  • Chemical properties of these reactants are entirely different from that of the products.
  • Chemical composition as well as the physical properties of the reactants and the products will change
5 0
3 years ago
Unstable isotopes undergo radioactive decay. what occurs during radioactive decay?
mel-nik [20]
Here is what radioactive decay is:
<span>Radioactive decay is the spontaneous breakdown of an atomic nucleus resulting in the release of energy and matter from the nucleus. Remember that a radioisotope has unstable nuclei that does not have enough binding energy to hold the nucleus together.</span>
5 0
3 years ago
Sucralfate (molecular weight: 2087 g/mol) is a major component of Carafate®, which is prescribed for the treatment of gastrointe
dybincka [34]

Answer:

Option b. 0.048 M

Explanation:

We have the molecular weight and the mass, from sulcralfate.

Let's convert the mass in g, to moles

1 g . 1 mol / 2087 g = 4.79×10⁻⁴ moles.

Molarity is mol /L

Let's convert the volume of solution in L

10 mL . 1L/1000 mL = 0.01 L

4.79×10⁻⁴ mol / 0.01 L = 0.048 mol/L

3 0
3 years ago
Other questions:
  • Combustion of 7.54 g of liquid benzene (C6H6) causes a temperature rise of 50.3°C in a constant-pressure calorimeter that has a
    5·1 answer
  • Using the information in the chart, the distance and displacement of each object can be determined. Which object has a distance
    7·2 answers
  • Which is true about an invading species?
    9·2 answers
  • How are rechargeable batteries recharged? a. Adding new reactants c. Passing electric charge through the reactants b. Changing t
    13·1 answer
  • 1 mole of a gas occupies 22.4 L at ________
    10·1 answer
  • The total concentration of ions in a 0.75 M solution of HCl is
    15·1 answer
  • PLZZZ HELP. Just say yellow goes under ..... for example.
    5·1 answer
  • Which of the following was not used as evidence to support
    12·1 answer
  • A reaction between an acid and a base produced lithium chloride (LiCl). What acid and base combination could produce this salt?
    7·1 answer
  • Which of the following is an example of a
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!