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
JulsSmile [24]
3 years ago
13

How many moles of Fe2O3 will be produced when 12.2 moles of O2 react with Fe?

Chemistry
1 answer:
S_A_V [24]3 years ago
6 0

Explanation:

When iron rusts in air, iron (III) oxide is produced. How many moles of oxygen react with 12.9 mol of iron in the rusting reaction? 4Fe(s)+3O2(g)→2Fe2O3(s)?

Chemistry  The Mole

9.675 mol of oxygen gas.

Explanation:

We have the balanced equation:

4Fe(s)+3O2(g)→2Fe2O3(s)

And so, 4 moles of iron react with 3 moles of oxygen, and therefore, 12.9 mol of iron would react with:

12.9mol Fe⋅3 mol O24mol Fe=9.675 mol O2

You might be interested in
Which is a positive effect of the technology advance of going from a compass to a gps
egoroff_w [7]

Answer:

Compass - Gps                              

Explanation:

I belive the pro's                                      and cons are

                                         GPS             you are trusting a little man made device

the direction you                               to give you directions

are going on                                        and that it won't break or die

a device not a paper map

                                                Compass

You can see north east south and              it is usually carefully crafted for                                                                                                                                                                          o                                                                     outdoors but it has no roads and

west on the compass and                          if given no directions, extremely

you can see the roads follow directions                  confusing until you learn it

like go south then east.

4 0
3 years ago
If the ph of a solution is decreased from ph 8 to ph 6 it means that the
saw5 [17]

Explanation:

Relation between pH and concentration of hydrogen ions is as follows.

                  pH = -log [H^{+}]

So, it means that an increase in the value of pH will show that there occurs a decrease in concentration of hydrogen ions.

Therefore, the solution becomes basic in nature.

On the other hand, a decrease in the value of pH will show that there occurs an increase in the concentration of hydrogen ions.

Therefore, the solution becomes more acidic in nature.

Hence, if the pH of a solution is decreased from pH 8 to pH 6 it means that the concentration of hydrogen ions has increased in the solution.

5 0
3 years ago
Read 2 more answers
Simplify - Factor a
Dmitriy789 [7]

Answer:

Option 1

Explanation:

Option number 1 is the most compact one which indicates it is a solid

7 0
3 years ago
The law of constant composition states: All atoms of a given element have a constant composition and are different than atoms of
Airida [17]

Answer:

C

Explanation:

The law proves C. For examples no matter how water you have it will always have a 1:2 ratio of oxygen to hydrogen. :)

7 0
3 years ago
Which best describes the relationship between the terms frequency, wavelength, and hertz?
Oksanka [162]

Answer:

The correct answer is - Frequency is the number of wavelengths, which is measured in hertz.

Explanation:

Frequency is the number of waves that go through a fixed point at a particular time. Hertz is the SI unit for frequency which means that one hertz is equal to a unit number of waver passes in a unit time to a fixed point.

As the frequency of a wave increases which means the number of waves increases in the unit time, the shorter the wavelength will be.

a higher frequency wave has more energy than a lower frequency wave with the same amplitude.

5 0
3 years ago
Other questions:
  • What is the molarity when 8.0 moles of solute are dissolved in 1.5 liters of solution?
    7·2 answers
  • Mixing a cocktail is it a physical or chemical change
    13·1 answer
  • What kind of mixture is a solution? A suspension? A colloid?
    5·1 answer
  • How does temperature affect the state of matter
    15·1 answer
  • Relationship between the variables of Pressure and Temperature of a gas?
    5·1 answer
  • If there is a chemical change it will remain the same properties because a new substance was formed
    7·1 answer
  • Can someone help me answer C
    8·1 answer
  • The process in which a plant uses sunlight to change water and carbon dioxide into sugar and oxygen quizle?
    8·2 answers
  • Which of these is part of the geosphere?
    6·2 answers
  • Water is a polar molecule. What does that mean?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!