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EleoNora [17]
3 years ago
8

Which of the following substances

Chemistry
2 answers:
andreev551 [17]3 years ago
8 0
A, Saline NaCI and H,0
kondor19780726 [428]3 years ago
8 0
The person aboveAnswered it
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Long-wavelength infrared cameras detect infrared radiation with a wavelength of 1.0 x 10-5 meters. How much energy is in these w
alexdok [17]

Answer: The energy of the infrared radiation is 19.8\times 10^{-21}J

Explanation:

The relationship between wavelength and energy of the wave follows the equation:

E=\frac{hc}{\lambda}

E= energy

\lambda = wavelength of the wave  =1.0\times 10^{-5}m

h = Planck's constant  = 6.626\times 10^{-34}Js

c = speed of light = 3\times 10^8m/s

E=\frac{6.626\times 10^{-34}Js\times 3\times 10^8m/s}{1.0\times 10^{-5}m}

E=19.8\times 10^{-21}J

Thus energy of the infrared radiation is 19.8\times 10^{-21}J

3 0
3 years ago
Resonance structures have _______ connectivity of atoms and _______ distribution of electrons.
Gnoma [55]

Answer:

same, different

Explanation:

Resonance structures have _same______ connectivity of atoms and __different_____ distribution of electrons.

Resonance structures are obtained in molecules where the atomic positions are the same but the electrons joining the atoms keep on delocalising. Usually, none of the resonating structures can fit the molecule or ion. This implies that the real structure is the hybrid of all the possible structures.

5 0
4 years ago
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In 1913, Henry Moseley discovered a way to calculate the atomic number for each element and it was determined to arrange the per
Jobisdone [24]

A) The atomic mass can vary based on the number of neutrons the atoms of the same element have, so the atomic mass may not be in order. Also, the atomic number is unique to each element.

Hope this helped!

8 0
4 years ago
How many half filled orbitals are in a bromine atom<br><br> a)1<br><br> b)4<br><br> c)2<br><br> d)3
Vesna [10]
You have the electron configuration [Ar]4s23d104p5
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Cr2 (SO4)3 is known as:-
cupoosta [38]
It's known as chromium (III) sulphate which is green in colour.
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