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4vir4ik [10]
3 years ago
12

Infrared radiation has a longer wavelength, ____ frequency, and ____ energy than visible light.

Chemistry
2 answers:
vodka [1.7K]3 years ago
5 0
Infrared radiation has a longer wavelength, HIGHER frequency and LOWER energy than visible light.
Hope this helps!!!!!!!
KATRIN_1 [288]3 years ago
4 0

<u>Answer:</u> The correct answer is lower, lower.

<u>Explanation:</u>

The relation between energy and wavelength of light is given by Planck's equation, which is:

E=\frac{hc}{\lambda}       .....(1)

where,

E = energy of the light

h = Planck's constant

c = speed of light

\lambda = wavelength of light

We also know that:

\nu=\frac{c}{\lambda}     ......(2)

where,

\nu = frequency of light

From equation 1 and 2, we get that wavelength is inversely proportional to energy as well as frequency of the light. So, if the wavelength of light is high, that means energy and frequency will be low.

Hence, the correct answer is lower, lower.

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6 0
3 years ago
When copper is heated with an excess of sulfur, copper(I) sulfide is formed. In a given experiment, 0.0970 moles of copper was h
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Answer:

Percent yield = 22.8 %

Explanation:

Step 1: Data given

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Mass of copper(I) sulfide = 1.76 grams

Step 2: The balanced equation

2Cu + S ⇒ Cu2S

Step 3:  Calculate moles of Cu2S

For 2 moles Cu we need 1 mol S to produce 1 mol Cu2S

For 0.0970 moles Cu we'll hace 0.0970 / 2 = 0.0485 moles

Step 4: Calculate mass of Cu2S

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3 0
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