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rusak2 [61]
3 years ago
12

The wavelength of a light wave can be used to measure which of the following?

Chemistry
1 answer:
Dahasolnce [82]3 years ago
7 0
Option C. How much energy the wave has.

The energy of the light is related with the wavelenght and the equation is

Energy = Planck constant * ligth speed / wavelenght.

The shorter the wavelength the higher the energy  of the wave.
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For the vaporization reaction Br2(l) → Br2(
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let  delta G  be =0

therefore  delta H- T  delta s =0

therefore  T=  delta  H/  delta  S
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2 years ago
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galina1969 [7]

Answer:

Cd(s) + AgNO₃(aq)  → Cd(NO₃)₂ (aq) + Ag(s)

Oxidized: Cd

Reduced: Ag

Explanation:

Cd(s) + AgNO₃(aq)  → Cd(NO₃)₂ (aq) + Ag(s)

Cd → Cd²⁺  +  2e⁻      Half reaction oxidation

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Ag changed oxidation number from +1 to 0

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Let's ballance the electrons

( Cd → Cd²⁺  +  2e⁻ ) .1

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Cd + 2e⁻ + 2Ag⁺  → 2Ag +  Cd²⁺  +  2e⁻

Finally the ballance equation is:

Cd(s) + 2AgNO₃(aq)  → Cd(NO₃)₂ (aq) + 2Ag(s)

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