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blondinia [14]
2 years ago
9

one molecule of chlorophyll contains 137 atoms. how many of these atoms come from the metal magnesium?

Chemistry
1 answer:
Svetlanka [38]2 years ago
7 0
The chemical formula for chlorophyll is C55H72O5N4<span>Mg. Only 1 of the 137 atoms comes from magnesium.

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7 0
3 years ago
What does the 4 indicate in 1s22s22p4? 4th subshell 4 electrons 4th energy level
kupik [55]

Answer: The number 4 indicates 4 electrons.

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1s^22s^22p^4

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3 0
3 years ago
Read 2 more answers
Which of these compounds is not a molecule?<br><br> A) MgO<br><br> B)SO2<br><br> C)CO<br><br> D) CS2
DerKrebs [107]
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2 years ago
What is the mass of 2.50 moles of NaCl
garik1379 [7]

Answer:

The mass of 2,50 moles of NaCl is 146, 25 g.

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First we calculate the mass of 1 mol of NaCl, starting from the atomic weights of Na and Cl obtained from the periodic table. Then we calculate the mass of 2.50 moles of compound, making a simple rule of three:

Weight NaCl= Weight Na + Weight Cl=  23 g+ 35,5 g= 58, 5 g/ mol

1 mol ------ 58, 5 g

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3 years ago
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