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cricket20 [7]
3 years ago
13

How is emission spectra produced?

Chemistry
2 answers:
Scorpion4ik [409]3 years ago
7 0

Answer:

emission spectra are produced by thin gases in which the atoms do not experience many collisions (because of the low density). The emission lines correspond to photons of discrete energies that are emitted when excited atomic states in the gas make transitions back to lower-lying levels.

Explanation:

gulaghasi [49]3 years ago
3 0

Answer:

Atomic emission spectra are produced when excited electrons return to the ground state.

Explanation:

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lubasha [3.4K]
Physical Reaction?


1: Relax.
2: Work out ; Be in shape ; Eat vegetables
3: Try making it a habit
4: Sports

Chemical Reaction?

1: Concentration
2: Area you are in ( you want warm weather )
3: Area you are USING ( more area the better)
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8 0
4 years ago
[40 points] How do I find the average atomic masses of these?
RUDIKE [14]

Answer:

14.02 amu

Explanation:

The following data were obtained from the question:

Isotope A (N–13):

Mass of A = 13 amu

Abundance (A%) = 28.97%

Isotope B (N–14):

Mass of B = 14 amu

Abundance (B%) = 41.04%

Isotope C (N–15):

Mass of C = 15 amu

Abundance (C%) = 29.97%

Average atomic mass of nitrogen =?

The average atomic mass of nitrogen can be obtained as illustrated below:

Average = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100]

= [(13 × 28.97)/100] + [(14 × 41.04)/100] + [(15 × 29.97)/100]

= 3.77 + 5.75 + 4.50

= 14.02 amu

Thus, the average atomic mass of nitrogen is 14.02 amu

4 0
3 years ago
How does milk of magnesia act to calm an upset stomach
vovangra [49]
It helps an upset stomach by taking out water from the intestines. the milk of magnesia acts as a laxative. or known as (osmotic-type)
6 0
3 years ago
Read 2 more answers
2. A 0.5 kg tennis ball has speed of 15m/s. what is the kinetic energy of tennis?
Talja [164]

Explanation:

Given

mass (m) = 0.5 kg

velocity (v) = 15 m/s

Now

Kinetic energy

= 1/2 *m*v²

= 1/2 * 0.5 * 12²

= 0.5 *0.5 * 144

= 36 joule

hope it will help

4 0
3 years ago
PLEASE HELP QUICK!
Mila [183]

Answer:A

Explanation:

Your muscular system is at work

6 0
3 years ago
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