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
oksian1 [2.3K]
3 years ago
10

Study the chemical reaction.

Chemistry
1 answer:
viktelen [127]3 years ago
6 0

Answer: The mole ratio between Fe and O_2 is \frac{4Fe}{3O_2}

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The given balanced chemical equation is :

4Fe+3O_2\rightarrow 2Fe_2O_3

Thus 4 moles of iron (Fe) reacts with 3 moles of oxygen gas (O_2) to give 2 moles of ferric oxide (Fe_2O_3)

The mole ratio between Fe and O_2 is \frac{4Fe}{3O_2}

You might be interested in
If I have one mole of gold atoms, how many gold atoms do I have?
yuradex [85]

Answer:

6.022 X 10^23

Explanation:

avatars number states that for every mole of an element there are 6.p22 X 10^23 atoms of that element

3 0
3 years ago
Read 2 more answers
The surface temperature on Venus may approach 757 K. What is this temperature in degrees Celsius?
kotykmax [81]

Explanation:

1 ) Temperature of Venus in Kelvins =  757 Kelvins

0^oC=273 Kelvins

Temperature of Venus in degrees Celsius =757-273 K=484 K

2 ) Temperature on Mercury at night = -269^oF

(T)^oC=((T)^oF-32)\times \frac{5}{9}

(T)^oC=((-269)^oF-32)\times \frac{5}{9}=167.22^oC

Temperature on Mercury at night in degree Celsius = 167.22° C

7 0
3 years ago
Read 2 more answers
Please help me thanks!?!?!?
-BARSIC- [3]

Answer:

its burning

Explanation:

can you please try to answer my latest question i need it badly please and thank you

3 0
3 years ago
Read 2 more answers
At room temperature, the surface tension of water is 72.0 mJ·m–2. What is the energy required to change a spherical drop of wate
Keith_Richards [23]
It is given that the surface area of sphere is 4 π r² and its volume is (4/3 π r³)
With a diameter of 1.2 mm you have a radius of 0.6 mm so the surface area about 4.5 mm² and the volume is about 0.9 mm³ 
The total surface energy of the original droplet is (4.5 x 10⁻⁶ m x 72) = 3.24 x 10⁻⁴mJ
The five smaller droplets need to have the same volume as the original so:
5 V = 0.9 mm³ so the volume of smaller sphere will equal 0.18 mm³
Since this smaller volume still have volume (4/3 π r³) so r = 0.35 mm
Each of the smaller droplets has a surface are = 1.54 mm² 
The surface energy of the 5 smaller droplet is then (5 x 1.54 x 10⁻⁶ m x 72) = 5.54 x 10⁻⁴ mJ
From this radius the surface energy of all smaller droplets is 5.54 x 10⁻⁴ and the difference in energy is (5.54 x 10⁻⁴) - (3.24 x 10⁻⁴) = 2.3 x 10⁻⁴ mJ
Therefore we need about 2.3 x 10⁻⁴ mJ of energy to change a spherical droplet of water of diameter 1.2 mm into 5 identical smaller droplets
5 0
3 years ago
Which type of scientist would most likely study how electricity could be
Nikolay [14]

Electrical engineers are the scientists that study the production of electricity more efficient.

<h3>Which type of scientist would study how electricity could be produced more efficiently?</h3>

Electrical engineers are the type of scientist that would most likely study how electricity could be produced more efficiently because they produced new technologies which are cost efficient as well as produce high amount of electricity.

So we can conclude that electrical engineers are the scientists that study the production of electricity more efficient.

Learn more about electricity here: brainly.com/question/776932

#SPJ1

6 0
2 years ago
Other questions:
  • In which reaction is it possible for nitrogen to change into carbon?
    13·1 answer
  • If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning t
    15·1 answer
  • Cutting a piece of paper in half proves that solids have no definite shape.<br><br> True or False?
    5·1 answer
  • 50.0 mL each of 1.0 M HCl and 1.0 M NaOH, at room temperature (20.0 OC) are mixed. The temperature of the resulting NaCl solutio
    12·1 answer
  • 12. In the modern periodic table, which of the following describes the elements with similar
    7·2 answers
  • When mixed together, baking soda and vinegar undergo a chemical reaction. Carbon dioxide, water, and
    6·2 answers
  • your older sister has just got her driver's licence. write a paragraph in your notebook to explain what she should do to make su
    12·1 answer
  • Who first proposed the concept of free energy?
    13·2 answers
  • Which atom has the lowest(smallest) ionization energy?<br> A. Na<br> B.K<br> C. Me<br> D. Ca
    15·1 answer
  • Can u guys pls write a little paragrapgh for each number hurry pls i need to pass this class for my mom
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!