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kirza4 [7]
3 years ago
12

Balance FeCl3 + MgO ---> Fe2O3 + MgCl2

Chemistry
1 answer:
german3 years ago
3 0

Answer: The balanced equation is 2FeCl_{3} + 3MgO \rightarrow Fe_{2}O_{3} + 3MgCl_{2}

Explanation:

The given reaction equation is as follows.

FeCl_{3} + MgO \rightarrow Fe_{2}O_{3} + MgCl_{2}

Here, number of atoms present on reactant side are as follows.

  • Fe = 1
  • Cl = 3
  • Mg = 1
  • O = 1

Number of atoms on product side are as follows.

  • Fe = 2
  • Cl = 2
  • Mg = 1
  • O = 3

To balance this equation, multiply FeCl_{3} by 2 and MgO by 3 on reactant side. Also, multiply MgCl_{2} by 3 on product side. Therefore, the equation can be rewritten as follows.

2FeCl_{3} + 3MgO \rightarrow Fe_{2}O_{3} + 3MgCl_{2}

Hence, number of atoms on reactant side are as follows.

  • Fe = 2
  • Cl = 6
  • Mg = 3
  • O = 3

Number of atoms on product side are as follows.

  • Fe = 2
  • Cl = 6
  • Mg = 3
  • O = 3

Since, this equation contains same number of atoms on both reactant and product side. Therefore, this equation is now balanced equation.

Thus, we can conclude that the balanced equation is 2FeCl_{3} + 3MgO \rightarrow Fe_{2}O_{3} + 3MgCl_{2}.

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What is the mass of 5.7 x 1022 atoms Mn?
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The mass of 5.2 x 10^22 manganese atoms in grams would be 635.784 grams.

What is Avogadro's constant?
Avogadro's number tells us how many particles are in one mole (or mol) of a substance. <u>Electrons</u><u>, molecules, or atoms</u> could be among these particles. Avogadro's number has a value of approximately 6.022140857×10²³ mol⁻¹. Avogadro's number tells us how many particles are in one mole (or mol) of a substance. <u>Electrons, molecules, or atoms </u>could be among these particles. Avogadro's number has a value of approximately 6.022140857×10²³.


Computation of mass
Avogadro calculated that every material had 6.022 x 10^23 atoms per mole.

5.2 x 10^22 atoms of Mn would contain how many moles?
= 6.022 x 10^23 /1 x 5.2 x10^22
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You may learn more about Avogadro's constant here: brainly.com/question/15989275
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