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
Juli2301 [7.4K]
3 years ago
14

How many moles of electrons are transferred in the folllowing balanced chemical equation 4fe + 3o2?

Chemistry
1 answer:
AfilCa [17]3 years ago
6 0
3 o2 electrons are the strongest than the iron due to molecular stability
You might be interested in
Given the heat change per mole for the combustion of methanol (-726 kJ/mol), predict the heat change that would occur if 0.200 m
DochEvi [55]

Answer:

-145.2kJ

Explanation:

Enthalpy is an extensive property as its value depends on the amount of substance present in the system.

If the enthalpy for one mole of methanol = -726 kJ/mol;

The Enthalpy for 0.2 mol is given as;

Enthalpy = 0.200 * 726

Enthalpy = -145.2kJ

It would take -145.2kJ for 0.200 mol of methanol to undego the combustion reaction.

8 0
2 years ago
When energy transforms, which of the following does it produce?
Aliun [14]

motion

Explanation:

it works in our daily life

8 0
2 years ago
1. A 25 g rock is placed in a graduated cylinder with water. The volume of the liquid rises from 18.3 mL to 21.4 mL Calculate th
MaRussiya [10]

Answer:

1. \rho=8.06g/cm^3

2. H=10cm

Explanation:

Hello,

1. In this case, since the volume of the rock is obtained via the difference between the volume of the cylinder with the water and the rock and the volume of the cylinder with the water only:

V=21.4mL-18.3mL=3.1mL

Thus, the density turns out:

\rho=\frac{m}{V}=\frac{25g}{3.1cm^3}  \\\\\rho=8.06g/cm^3

2. In this case, given the density and mass of aluminum we can compute its volume as follows:

V=\frac{m}{\rho}=\frac{1080g}{2.7g/cm^3}=400cm^3

Moreover, as the volume is also defined in terms of width, height and length:

V=W*H*L

The height is computed to be:

H=\frac{V}{L*W}=\frac{400cm^3}{5cm*8cm}\\ \\H=10cm

Best regards.

3 0
3 years ago
During the nuclear fission process, the transformation between a parent and daughter isotope involves a a release of neutrons an
denis-greek [22]

Answer:

The energy harnessed in nuclei is released in nuclear reactions. Fission is the splitting of a heavy nucleus into lighter nuclei and fusion is the combining of nuclei to form a bigger and heavier nucleus. The consequence of fission or fusion is the absorption or release of energy.

Introduction

7 0
2 years ago
1. Have scientists been able to invent a perpetual motion machine?<br> O Yes<br> O No
FromTheMoon [43]
After using my big brain it’s No
3 0
2 years ago
Read 2 more answers
Other questions:
  • An adult rhino xan have a mass of 1400 kg the mass of a small egret is about 0.76kg. what is the radio of these two masses? how
    11·1 answer
  • Which is not a compound<br> A.Sugar <br> B.Water<br> C.Gold<br> D.Silicon dioxide
    6·2 answers
  • When the [H+] in a solution is 1.7 × 10−9 M, what is the pOH ?
    6·2 answers
  • At STP, which gas sample has a volume of 11.2 liters?
    7·1 answer
  • Are ions present in a sample of P406? Explain
    5·1 answer
  • A compound that changes color when it is in contact with an acid or base is called
    13·1 answer
  • How can you be sure a solid is pure?
    10·1 answer
  • Some scientific evidence suggests that our universe is ever-expanding from a hot and dense initial state. Briefly describe at le
    15·2 answers
  • What does chemical reaction mean?
    13·1 answer
  • Why don't we write Roman numeral<br> charges for representative elements?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!