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marta [7]
2 years ago
7

What physical properties can be used to separate heterogeneous mixture's?

Chemistry
1 answer:
marysya [2.9K]2 years ago
7 0
Evaporation, distillation, filtration and chromatography
Hope it help you, have a nice day
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What is the energy of light with a wavelength of 468 nm? (The speed of light
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The answer for the problem is explained below.

The option for the answer is "D".

<u><em>Therefore the energy of the light is  4.25 × 10^-19 J</em></u>

Explanation:

Given:

wavelength (λ) = 468 nm = 468×10^-9 m

speed of light (c) = 3.00 x 10^8m/s

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To solve:

energy of light (E)

We know,

E =(h×c) ÷ λ

E = ( 6.626 x 10^-34 ×  3.00 x 10^8) ÷ 468×10^-9

E = 4.25 × 10^-19 J

<u><em>Therefore the energy of the light is  4.25 × 10^-19 J</em></u>

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