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Dima020 [189]
3 years ago
15

Drag each label to the correct location on the image. Each label can be used more than once.

Chemistry
1 answer:
taurus [48]3 years ago
6 0
Here i believe
if u have questions lmk

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Which part of the nervous system is a gray, wrinkly organ made up of millions of neurons? A. nerves B. brain C. spinal cord D. e
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4 years ago
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In nature, oxygen has three common isotopes. The atomic masses and relative abundances of these isotopes are given in the table
Vaselesa [24]

Answer: The average atomic mass of oxygen is 15.999 amu

Explanation:

Mass of isotope O-16 = 15.995 amu

% abundance of isotope O-16= 99.759 % = \frac{99.759}{100}=0.99759

Mass of isotope O-17 = 16.995 amu

% abundance of isotope O-17 = 0.037% = \frac{0.037}{100}=0.00037

Mass of isotope O-18 = 17.999 amu

% abundance of isotope O-18 = 0.204% = \frac{0.204}{100}=0.00204

Formula used for average atomic mass of an element :

\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})

A=\sum[(15.995\times 0.99759)+(16.995\times 0.00037)+(17.999 \times 0.00204)]

A=15.999

Thus the average atomic mass of oxygen is 15.999 amu

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3 years ago
How do I Unscramble this?<br><br> reusirtneadn rahi<br><br> _ _ _ _ _ _ _ _ _ _ _ _ hair
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The answer is unrestrained hair.

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4 years ago
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A line in the hydrogen spectrum occurs at 434 nm. what is the frequency of this radiation in sec -1
Taya2010 [7]
The lines occurring in an emission spectrum are all electromagnetic waves, which means that their speed in a vacuum is
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We can use the equation,
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The frequency of the wave will be 6.91 x 10¹⁴ oscillations per second.
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Define exothermic reaction.<br> Define endothermic reaction.
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4 0
3 years ago
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