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larisa86 [58]
3 years ago
10

Study this chemical reaction:

Chemistry
1 answer:
photoshop1234 [79]3 years ago
4 0

Answer:

The oxidation reaction: Ni → Ni⁴⁺ + 4e.

The reduction reaction: 2Cl₂ + 4e → 4Cl⁻.

Explanation:

  • The mentioned reaction: <em>Ni + 2Cl₂ → NiCl₄.</em>
  • It is an oxidation-reduction reaction comes from two half reactions.

<em>The oxidation reaction:</em> in it Ni losses 4 electrons and is oxidized to Ni⁴⁺ according to the reaction:

<em>Ni → Ni⁴⁺ + 4e.</em>

<em></em>

<em>The reduction reaction: </em>every molecule of Cl₂ will gain 2 electrons and is reduced to 2Cl⁻ according to the reaction:

<em>2Cl₂ + 4e → 4Cl⁻.</em>

<em></em>

  • The summation of the two-half reactions will give the reaction:

<em>Ni + 2Cl₂ → NiCl₄.</em>

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Answer:

D is wrong

Explanation:

it doesn't involves any kind of sharing of electrons

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A gas is being cooled down. Which option describes what will happen?
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The missing components in the table to the right are indicated with orange letters. Complete table by filling in the correspondi
V125BC [204]

Answer :

A = In

B = 27

C = 73

D = 49

E = 56

F = 54

G = 66

H = 108

I = 32

Explanation :

Atomic number is defined as the number of protons or number of electrons.

Atomic number = number of protons = number of electrons

Mass number is defined as the sum of number of protons and number of neutrons.

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Number of electrons = Number of protons - charge

Element        Number of       Number of        Number of        Atomic

symbol          protons            electrons          neutrons           mass

  Co                  27                     27                      31                    58

  In                    49                     49                     66                   115

  Ta                   73                     73                     108                  181

  Ba²⁺                56                    54                      81                   137

  S²⁻                  16                      18                      16                    32

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3 years ago
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Energy = hv

where h = Planck constant = 6.626 × 10 ⁻³⁴ m²kg/s and v = frequency

c speed of light = vλ

c / λ = v

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λ  = hc / E = (6.626 × 10 ⁻³⁴ m²kg/s × 3.0 × 10 ⁸ m/s) / (8.223 × 10⁻¹⁹ J)  = 2.41 × 10⁻⁷m = 241 nm

UV light wavelength is between 400 nm - 10 nm

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3) The balanced chemical equation:

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6 0
3 years ago
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