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e-lub [12.9K]
2 years ago
12

ALSO NEED THIS ANSWERED PRETTY SOON I THINK IK WHAT IT IS BUT NOT SURE HELP!

Chemistry
2 answers:
Montano1993 [528]2 years ago
4 0
It’s b. Just helped a lesson on this a couple weeks ago. It’s B because you’re using your muscular to pick up the pencil and your nervous system sends signals to your brain to send signals back to your arm to lift and grab the pencil
Illusion [34]2 years ago
3 0

Answer:

I think it's B but I could be wrong so really sorry if I am

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If 1 mol of XO₂ contains the same number of atoms as 60 g of XOs, what is the molar mass of XO₂?
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44 grams/mole

Explanation:

<u>If 1 mol of XO₂ contains the same number of atoms as 60 g of XO3, what is the molar mass of XO₂?</u>

<u></u>

60 grams of XO3 is one mole XO3, since it has the same number of atoms as 1 mole of XO2.

Let c be the molar mass of X.  The molar mass of XO3 is comprised of:

X:  c

3O:  3 x 16 = 48

Total molar mass of XO3 is = <u>48 + c</u>

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48 + c  = 60 g/mole

c = 12 g/mole

The molar mass of XO2 would be:

1 X = 12

2 O = 32

Molar mass = 44 grams/mole, same as carbon dioxide.  Carbon's molar mass is 12 grams.

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2 years ago
What does the answer of element 3Na2S2O3?
Fynjy0 [20]

Answer:

Explanation:

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hope that helps im new so have a good day (:

Explanation:

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