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3 years ago

what is the color of a fabric that absorbs electromagnetic radiation of wavelengths between 400 and 500nm

Chemistry

1 answer:

Umnica [9.8K]3 years ago

6 0

Answer:

Either of the three colors

Violet , indigo , Blue

Explanation:

The different ranges of color produced as per the electromagnetic spectrum are as follows

• Violet: 400 - 420 nm

• Indigo: 420 - 440 nm

• Blue: 440 - 490 nm

• Green: 490 - 570 nm

• Yellow: 570 - 585 nm

• Orange: 585 - 620 nm

• Red: 620 - 780 nm

A material absorbing light in the range of 400-500 nm can have three colors –

• Violet: 400 - 420 nm

• Indigo: 420 - 440 nm

• Blue: 440 - 490 nm

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Which equation represents a redox reaction?

labwork [276]

Answer:

D. $2NaBr + Cl_2\rightarrow 2NaCl + Br_2$

Explanation:

Hello!

In this case, for the given set of chemical reactions, it is possible to infer that D. is a categorized as redox due to the following:

Since both chlorine and bromine remain as diatomic gases, their oxidation states in such a form is 0, but as anions with lithium cations they have a charge of - according to the following reaction and half-reactions:

$2NaBr + Cl_2\rightarrow 2NaCl + Br_2$

$Cl_2^0+2e^-\rightarrow 2Cl ^-\\\\2Br^- \rightarrow Br_2^0+2e^-$

Unlike the other reactions whereas no change in the oxidation states is evidenced.

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3 years ago

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9. A box is pushed 1.5 m to the right in 5 s. What is the box’s average speed to the nearest hundredth of a m/s? *

poizon [28]

Answer:

s = 0.30 m/s

Explanation:

Given data:

Distance travel = 1.5 m

Time taken = 5 s

Average speed of box = ?

Solution:

s = d/t

s = speed

d = distance

t = time

by putting values,

s = 1.5 m/ 5 s

s = 0.30 m/s

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irakobra [83]

Answer:

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Answer:

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