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goblinko [34]
3 years ago
12

Consider the following unbalanced redox reaction:

Chemistry
1 answer:
Greeley [361]3 years ago
4 0

Answer:

Two

Explanation:

I believe your unbalanced equation should be

H₂O₂ + I₂ ⟶ IO₃⁻

The half-reactions and the overall reaction are:

5 × [H₂O₂ + 2H⁺ +2e⁻ ⟶ 2H₂O]

1 × <u>[ I₂ + 6H₂O ⟶ 2IO₃⁻ + 12H⁺ + 10e⁻] </u>

      5H₂O₂ + I₂ ⟶ 2IO₃⁻ + 2H⁺ + 4H₂O

The reaction needs two hydrogen ions for balancing.

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Anarel [89]

I think D is your answer

5 0
3 years ago
Read 2 more answers
What is the balanced net precipitation reaction for BaCl2 and KOH?
Dmitrij [34]
BaCl2 reacts with KOH forming KCl which is a salt and Ba(OH)2 which is the precipitate.
The initial UNBALANCED equation expressing this reaction would be:
BaCl2 + KOH .............> KCl + Ba(OH)2
Now, we need to balance this equation:
we have two moles of Cl as reactants and one mole only as product. Therefore, we will multiply the KCl in the product by 2 and the KOH in the reactants by 2.
This will balance the equation as follows:
BaCl2 + 2KOH ......> 2KCl + Ba(OH)2

Noticing this equation, we will find that:
The precipitate was formed due to the combination of the Ba2+ ion with 2 OH- ions as follows:
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7 0
4 years ago
In the important industrial process for producing ammonia (the Haber Process), the overall reaction is:
irina [24]

Answer:

- 50.2 kJ

Explanation:

  • From the data given, the heat released per 2.0 moles of NH₃ is - 100.4 kJ.
  • The negative sign means that the reaction is exothermic and the energy is released.
  • <em>So, the ΔH in kJ of heat released per mole of NH₃ formed is (100.4 kJ/2) = - 50.2 kJ.</em>
4 0
3 years ago
Classify each of the following as elements (E), compounds (C) or Mixtures (M). Write the letter X if it is none of these. ______
Lana71 [14]

Answer:

Diamond - E

Sugar- C

Milk - M

Iron- E

Air- M

Sulfuric Acid- C

Gasoline - M

Electricity- X

Krypton- E

Bismuth - E

Uranium - E

Kool-Aid -M

Water - C

Alcohol - C

Pail of Garbage - M

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Salt - C

Energy - X

Gold - E

Wood - M

Bronze - M

Ink - M

Pizza - M

Dry Ice - C

Baking Soda - C

Explanation:

An element is the smallest part of a substance that is capable of independent existence. An element cannot be broken down into any other substance. Krypton, Bismuth etc are all elements.

A compound is a combination of two or more elements which are chemically combined together e.g NH3, CO2 etc.

A mixture is any combination of substances that are not chemically combined together. E.g Pizza, milk etc

5 0
3 years ago
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poizon [28]

Answer:

A

Explanation:

6 0
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