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densk [106]
4 years ago
5

What are the correct half reactions for the following reaction:

Chemistry
2 answers:
d1i1m1o1n [39]4 years ago
8 0

Answer:

D. Zn → Zn²⁺ + 2e⁻, 2H⁺ + 2e⁻ → H₂.

Explanation:

  • It is a redox reaction that is consisted of two half-reactions:

Oxidation reaction:

Zn losses 2 electrons and is oxidized to Zn²⁺:

<em>Zn → Zn²⁺ + 2e⁻.</em>

<em></em>

Reduction reaction:

H⁺ gains 1 electron and is reduced to H:

<em>2H⁺ + 2e⁻ → H₂.</em>

<em></em>

<em>So, the right choice is: D. Zn → Zn²⁺ + 2e⁻, 2H⁺ + 2e⁻ → H₂.</em>

<em></em>

Valentin [98]4 years ago
7 0

Answer:

D. Zn → Zn²⁺ + 2e⁻, 2H⁺ + 2e⁻ → H₂.

Explanation:

Answer via Educere/ Founder's Education

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It's the only one missing in the molecule

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How are ionic bonds formed
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In order for us to taste something, the substance must be dissolved in liquid.
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Determine if each compound shown is soluble or insoluble. cu(oh)2
vredina [299]

We have to determine if the given compound is soluble or insoluble in water.

The given compound is copper (II) hydroxide, Cu(OH)_{2}. According to the solubility rules the hydroxides of all metal ions are insoluble except that of ammonium and the alkali metal ions. So copper(II) hydroxide will be insoluble in water. In aqueous solution, copper (II) hydroxide would exist as a sparingly soluble compound in which the undissociated compound remains in equilibrium with the ions Cu^{2+}and OH^{-}. The equilibrium would remain mostly towards undissociated form.

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4 0
3 years ago
Predict the products of the reaction below. That is, complete the right hand side of the chemical equation. Be sure your equatio
pickupchik [31]

Answer:

2 HClO₃ + Ca(OH)₂ ---> Ca(ClO₃)₂ + 2 H₂O

Explanation:

This is a double-displacement reaction. In these reactions, the cation of one molecule swaps with the cation of another.

In this case, the hydrogen cation (H⁺) from HClO₃ swaps with the calcium cation (Ca²⁺) of Ca(OH)₂. When writing the products, keep the charges of the ions in mind. The products must be neutral, so some will need to have more than 1 cation/anion.

The unbalanced equation:

HClO₃ + Ca(OH)₂ ---> Ca(ClO₃)₂ + H₂O

<u>Reactants</u>: 3 hydrogen, 1 chlorine, 5 oxygen, 1 calcium

<u>Products</u>: 2 hydrogen, 2 chlorine, 7 oxygen, 1 calcium

The balanced equation:

2 HClO₃ + Ca(OH)₂ ---> Ca(ClO₃)₂ + 2 H₂O

<u>Reactants</u>: 4 hydrogen, 2 chlorine, 8 oxygen, 1 calcium

<u>Products</u>: 4 hydrogen, 2 chlorine, 8 oxygen, 1 calcium

4 0
2 years ago
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