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netineya [11]
3 years ago
8

Which best describes the definition for the atomic mass of an element?

Chemistry
2 answers:
Zielflug [23.3K]3 years ago
6 0
Atomic mass is the mass of ONE ATOM of that element
Aleonysh [2.5K]3 years ago
3 0

Answer: it is a weighted average of the masses of an element’s isotopes

Explanation:

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8. Calculate the molar mass of an alkane with the mole-<br>cular formula C H18.​
andreyandreev [35.5K]

Answer:

Molar mass of CH18 =30

Explanation:

CH18

Molar mass of carbon = 12

Molar mass of hydrogen (H) = 1

CH18 = 12 + 1 (18) = 12 +18 = 30

5 0
3 years ago
Read 2 more answers
1.
xenn [34]
The answer is OH.

Hope this helps!
4 0
3 years ago
Which is warmer -30C or -30 F?​
Burka [1]

-30°C is more warmer than -30°F...!

<h2>How??</h2>
  • Always Celsius is warmer than farheniet and also in coldness Celsius is colder than farheneit.
8 0
2 years ago
Read 2 more answers
BRAINLIESTTT ASAP!!!! PLEASE HELP ME :)
Elan Coil [88]

Answer:

1s² 2s²2p³  

Explanation:

If the atom has seven electrons, it is Element 7 (nitrogen).

In the Periodic Table, you count the electrons in all the subshells up to

No. 7.

In the first Period, you have filled the 1s level (2 electrons).

In the second Period, you have filled the 2s subshell (2 electrons) and put three electrons in the 2p subshell.

Thus, the electron configuration is

1s² 2s²2p³

Note how the superscripts tell you the number of electrons in each subshell: <em>2 + 2 + 3 = 7</em>.

6 0
3 years ago
How many 250 mg tablets of metronidazole are needed to make 150 mL of suspension containing
Neko [114]

Answer:

How many 250 mg tablets of metronidazole are needed to make 150 mL of suspension containing

100 mg/mL?

a. 25

b. 30

c.50

d. 60

Explanation:

<em>if </em><em> </em><em>mali </em><em>po </em><em>I'm</em><em> </em><em>so </em><em>sorry</em>

7 0
2 years ago
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