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
True [87]
3 years ago
5

Question 24 (1 point)

Chemistry
1 answer:
aleksley [76]3 years ago
4 0

Answer:

Explanation:

Idk

You might be interested in
Assume that coal can be represented by the chemical formula C135H96O9NS. If 4.0 tons of coal is burned, what mass of nitrogen is
Schach [20]

Answer:

0.02 tons of NO produced when 4 tons of coal is burned

Explanation:

From the given,

Chemical formula of coal =  C_{134}H_{96}O_{9}NS

Molecular mass of coal = (134\times12)+(9\times1)+(9\times16)+14+32\,=1906.1gm

Let’s calculate the mass of nitrogen in coal

Percentage\,weight\,of\,nitrogen=\frac{Mass\,of\,nitrogen}{Molecular\,mass\,of coal}

Percentage\,weight/,of/,nitrogen=\frac{14}{1906.1}=0.73%

Amount of coal burnt = 4tons

Amount of NO produced by burning 4tons = 4\,tons\,of\,coal\times \frac{0.73tons}{100\,tons\,of\,coal}=0.0292\,tons

This nitrogen is converted into NO by reacting with atmospheric oxygen.

8 0
3 years ago
Read 2 more answers
How does the line spectra are used to identify elements and what they indicate about atoms?
olga nikolaevna [1]
<span>we know that each element has an unique spectra and it can be used to identify the element. it shows that the energy levels of the electrons and different colors are the result of different wavelengths.
hope it helps
</span>
3 0
3 years ago
Which scientist was the first to use the telescope in astronomy? Copernicus Newton Kepler Galileo
coldgirl [10]

The scientist that was the first to use the telescope in astronomy was Newton

8 0
3 years ago
How many miles of H2O are produced when 0.322 mol of octane is burned?
victus00 [196]

Answer:

alot of h2o

Explanation:

8 0
3 years ago
Determine whether or not each ion contributes to water hardness.
Virty [35]

Answer: The ion that contribute to water hardness are:

--> a. Ca2+

--> b. (HCO)3^- and

--> c. Mg2+

While K+ DOES NOT contribute to water hardness.

Explanation:

WATER in chemistry is known as a universal solvent. This is so because it is polar in nature and dissolves most inorganic solutes and some polar organic solutes to form aqueous solutions. It is composed of elements such as hydrogen and oxygen in the combined ratio of 2:1.

Water is said to be HARD if it does not lather readily with soap. There are two types of water hardness:

--> Permanent hardness: This is mainly due to the presence of CALCIUM and MAGNESIUM ions in the form of soluble tetraoxosulphate(VI) and chlorides. These ions are removed by adding washing soda or caustic soda.

--> Temporary hardness: This is due to the presence of calcium HYDROGENTRIOXOCARBONATES. It can be removed by boiling and using slaked lime.

Therefore from the above given ions, Ca2+,(HCO)3^- and Mg2+ contributes to water hardness.

4 0
2 years ago
Other questions:
  • What does the absolute magnitude of a star depend on?
    8·1 answer
  • Question 8<br> Review<br> Which metal jis most easily oxidized?
    5·2 answers
  • The mass-to charge ratio of the proton is found to be
    8·1 answer
  • When helium was discovered by humans?
    13·1 answer
  • What type of energy does a ball have when it rolls down a hill?
    9·1 answer
  • Abu Ali al-Hasa invented the words____and___
    13·1 answer
  • Which has the strongest intermolecular forces​
    13·2 answers
  • Based on details from "Thomas Edison: The Master of Improvement,” how did Joseph Swan and Thomas Edison differ?
    12·2 answers
  • Hi pls help pls pls. this is due at 11:59 help
    9·1 answer
  • PLEASE HELP WILL GIVE BRAINLY AND 5 STARS
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!