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
sleet_krkn [62]
3 years ago
15

Which has the greatest percentage of oxygen? CO2, NO2,SO2 and MgO?​

Chemistry
1 answer:
Dahasolnce [82]3 years ago
6 0

Answer:

CO₂

Explanation:

Please see attached picture for full solution.

* The masses of each atom can be found in the periodic table of elements

You might be interested in
A certain amount of hydrogen peroxide was dissolved in 100. mL of water and then titrated with 1.68 M KMnO4. What mass of H2O2 w
Stels [109]

Answer:

see explanation below

Explanation:

First to all, this is a redox reaction, and the reaction taking place is the following:

2KMnO4 + 3H2SO4 + 5H2O2 -----> 2MnSO4 + K2SO4 + 8H2O + 5O2

According to this reaction, we can see that the mole ratio between the peroxide and the permangante is 5:2. Therefore, if the titration required 21.3 mL to reach the equivalence point, then, the moles would be:

MhVh = MpVp

h would be the hydrogen peroxide, and p the permanganate.

But like it was stated before, the mole ratio is 5:2 so:

5MhVh = 2MpVp

Replacing moles:

5nh = 2MpVp

Now, we just have to replace the given data:

nh = 2MpVp/5

nh = 2 * 1.68 * 0.0213 / 5

nh = 0.0143 moles

Now to get the mass, we just need the molecular mass of the peroxide:

MM = 2*1 + 2*16 = 34 g/mol

Finally the mass:

m = 0.0143 * 34

m = 0.4862 g

8 0
3 years ago
What are the 5 common uses of fossil fuels?
Leni [432]

Answer:

Electricity. Coal alone provides half the electricity in the United States. ...

Heating. Oil and natural gas are commonly used for heating homes as well as providing heat for industrial applications.

Transportation. Oil supplies 99 percent of the energy for cars in the form of gasoline and diesel. ...

Limits. ...

Considerations.

Explanation:

5 0
3 years ago
The Paris Agreement intends to direct money toward limiting climate change and lowering greenhouse gas levels. Which groups are
yan [13]
I think the answer it’s e
7 0
3 years ago
Read 2 more answers
What can you conclude from the fact that electrons orbit far away from atomic nuclei?
suter [353]
Electrons are extremely small. Atoms are comprised mostly of empty space. Protons have a positive charge.
Hope this helps.
5 0
3 years ago
The CH3 ion is a conjugate base of CH4 and CH4 shows no evidence of being an acid in water. What happens when CH3 ion is added t
True [87]
So the answer is Jesus I hope this helps on your test or quiz! ☮️ peace ☮️
5 0
2 years ago
Other questions:
  • What causes a zip line rider movie?
    7·1 answer
  • An acid-base indicator is used in what type of reaction? A. neutralization B. combination C. decomposition D. combustion
    6·2 answers
  • In the reaction mg(s)+2hcl(aq) h2(g)+mgcl2(aq), how many grams of hydrogen gas will be produced from 125.0 ml of a 6.0m hcl in a
    13·2 answers
  • Compare the evaporation of a contained liquid with that of an uncontained liquid.
    12·1 answer
  • How much heat is absorbed/released when 20.00 g of NH3(g) (17.0307g/mol) react in the presence of excess O2(g) to produce NO(g)
    14·1 answer
  • 99<br> 96<br> 040Zr<br> +<br> 42He<br> ----&gt;<br> + "42Mo
    5·1 answer
  • Genetically engineered crops (3 points)
    8·1 answer
  • Reaction B could produce a substance with a pH of...<br><br> 14.<br><br> 4.<br><br> 10.<br><br> 7.
    5·2 answers
  • Atoms That have a positive charge will be attracted to atoms with a ___ charge.
    10·1 answer
  • explain how both hydrogen and carbon have achieved stability by bonding with each other to form methane ​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!