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Marina86 [1]
2 years ago
7

The brass cube has a mass of 67.2 grams. Each side is 2 cm long. What is the density of the brass cube? A) 2.8 g/cm 3 B) 3.15 g/

cm 3 C) 8.4 g/cm 3 D) 9.45 g/cm 3
Chemistry
1 answer:
frutty [35]2 years ago
4 0
The answer is  D. 9.45 g/cm
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Explanation:

When an electron jumps from a low energy orbital to a higher energy orbital in an atom, it absorbs a specific wavelength of electromagnetic radiation (This is called absorption spectrum). Vice versa, if the same electron jumps from a higher to a lower energy orbital it releases the equivalent quantum energy in electromagnetic wave (This is called emission spectrum). Different types of atoms of different elements have a unique spectrum identifier.

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8.
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The correct answer is b hope this helps air
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