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Anna35 [415]
3 years ago
6

How do atoms emit light ?

Chemistry
1 answer:
Stella [2.4K]3 years ago
3 0

Answer:

The frequencies of light that an atom can emit are dependent on states the electrons can be in. When excited, an electron moves to a higher energy level or orbital. When the electron falls back to its ground level the light is emitted.

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The barometric pressure measured outside an airplane at 3 km ( ft) was 524 mmHg. Calculate the pressure in kPa.
NeX [460]

Answer:

69.8609 KPa.

Explanation:

The following data were obtained from the question:

Pressure (in mmHg) = 524 mmHg.

Pressure (in KPa) =?

Thus we can obtain the pressure in KPa as follow:

760 mmHg = 101.325 Kpa

Therefore,

524 mmHg = 524 mmHg × 101.325 KPa / 760 mmHg

524 mmHg = 69.8609 KPa

Thus, 524 mmHg is equivalent to 69.8609 KPa.

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The elements found in Group 2A, from top to bottom, include beryllium, magnesium, calcium, strontium, and barium. Which of these
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3 years ago
Suppose you wanted to dissolve 109 g of sodium carbonate in enough water to make 6.00 L of solution. What is the molarity of thi
kumpel [21]
Molarity

a. Na2CO3
                Molar mass = 106 g/mol
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b. 6.00L

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Answer: The molarity of the sodium carbonate solution is 0.1713 mol/L

5 0
4 years ago
August kekule described the various ring structures of the carbon compound benzene. What type of chemist would he be considered
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