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garri49 [273]
3 years ago
9

What is the answer to this question please

Chemistry
2 answers:
sergeinik [125]3 years ago
5 0
Infrared and ultraviolet light
mezya [45]3 years ago
3 0
Infared and ultraviolet light. :)
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A photon of light possesses 5 x 10^-19 J of energy. Calculate its frequency
saveliy_v [14]

Answer:

The frequency of photon is 0.75×10¹⁵ s⁻¹.

Explanation:

Given data:

Energy of photon = 5×10⁻¹⁹ J

Frequency of photon = ?

Solution:

Formula;

E = hf

h = planck's constant = 6.63×10⁻³⁴ Js

5×10⁻¹⁹ J =  6.63×10⁻³⁴ Js ×f

f =  5×10⁻¹⁹ J / 6.63×10⁻³⁴ Js

f = 0.75×10¹⁵ s⁻¹

The frequency of photon is 0.75×10¹⁵ s⁻¹.

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3 years ago
If 3.06 grams of ammonia (NH₃) react with 0.0350 moles of chromium (III) nitrate as noted by the following equation, what is the
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If gas is truly to be classified as a form of matter this means it can be measured. What form of gas can be measured?
juin [17]

Answer:

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It is safe to stand on the top step of a ladder provided it is braced properly. A) True B) False
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