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Helga [31]
3 years ago
7

FeBr3 : What is the formula of cation or anion for this ionic formula?

Chemistry
1 answer:
xeze [42]3 years ago
4 0
The ionic compound Fe Br3 is electrically neutral.

The oxydation state of Br is -1, which gives a total of 3 negative charges, when you multiply 3 ions times -1 charge.

Then the oxydation state of Fe has to be 3+. 

Then the compound is formed by two charged particles, Fe+3 which is positively charged ion or cation, and Br - which is negatively charged or anion.

The algebraic sum of the charges of the ions must result 0 (neutral state).

The formulas of the ions is:

Fe^{3+}

and

Br^{-}

FeBr _{3} =  Fe^{3+} +3 Br^{-}

 
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Free_Kalibri [48]
<span>[H3O+] = 10^(-pH) = 10^(-4.20) = 6.3 x 10^-5 M

pOH = 14 - pH = 14 - 4.20 = 9.80

[OH-] = 10^(-pOH) = 10^(-9.80) = 1.6 x 10^-10 M
</span>
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Chemical reaction when chromium metal is immersed in an aqueous solution of cobalt(II) chloride.
Marrrta [24]

2Cr + 3CoCl_2→ 2CrCl_3 + 3Co

Explanation:

  • The products formed are chromic chloride and cobalt.

        Chromium + Cobaltous Chloride = Chromic Chloride + Cobalt

  • Type  of reaction is Single Displacement (Substitution) which is there is a displacement of one atom.

Reactants used in the reaction are -

  • Chromium(Cr)
  • Cobaltous Chloride (CoCl_2)

Products formed in the reaction are -

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Hence, the chemical reaction is as follows -

  • Cr + CoCl_2 →CrCl_3 + Co

For balancing the above chemical equation we need to add a coefficient of 2 in front of chromium and of 3 in front of cobalt(II)chloride on right-hand-side while of 2 in front of chromium chloride and of 3 in front of carbon monoxide on left-hand-side of the equation.

Hence, the balanced equation is -

2Cr + 3CoCl_2→ 2CrCl_3 + 3Co

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What are two ways condensation differs from boiling?
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Condensation is when vapor liquidizes and gathers on top of a surface, while boiling is turning a liquid into a gas or vapor. They are opposites. In the first, the molecules of the substance split and separate and increase the volume, while in the second they come together and reduce the volume.
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Answer: It is a molecular compound. (2) It contains a metal. (3) It can conduct electricity as a solid.

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