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alexandr402 [8]
3 years ago
7

What happens to sound waves when you are moving toward the source of the

Chemistry
2 answers:
tatiyna3 years ago
7 0
A because you’re moving towards it it should become louder (increase )
bekas [8.4K]3 years ago
6 0

Answer:

B

Explanation:

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Three nails have a mass of 3.05 g. How many moles of iron do they contain?
serg [7]

Hello!

Three nails have a mass of 3.05 g. How many moles of iron do they contain?

Data:

3 nails of iron = 3.05 g (by nail)  

The atomic mass of iron is 55.845 amu, so the molar mass is:

M = 55.845 → M ≈ 56 g / mol    

With a simple 3 rule:  

56 g → 1 mol

3.05 g → y mol  

Therefore:

\dfrac{56}{3.05} = \frac{1}{y}

56*y = 1*3.05

56y = 3.05

y = \dfrac{3.05}{56}

\boxed{y \approx 0.05446\:mol}}

Soon:

3 nails → 3*0.05446 = 0.1638 moles (answer)

_______________________

I Hope this helps, greetings ... Dexteright02! =)

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Why do we use commas after transition words?
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C - commas indicate a natural pause in the sentence

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The answer is b saturated
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Answer:

the answer for what?

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