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Anvisha [2.4K]
3 years ago
12

What is a rock that forms when pressure, temperature, or chemical processes change an existing rock

Chemistry
2 answers:
aleksklad [387]3 years ago
8 0
Metamorphic Rock is correct
Tamiku [17]3 years ago
3 0

I think that is called a Metamorphic rock.


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Anyone who is good at chemistry can you please help me with this? It’s only two problems and I need help. :(
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tinyurl.com/wpazsebu

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12) A 17.92 g sample of copper was submerged in water, and the volume reading rose by 2.00 mL. What is the density of the copper
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Hey there!:

Mass = 17.92 g

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Which aqueous solution will theoretically have the highest boiling point? A) 0.001 M NaCl B) 0.001 M C6H12O6 C) 0.001 M CaCl2 D)
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4 0
3 years ago
If a sample contains 21.2 g N, how many moles of N does it contain?
cupoosta [38]

Hello!

If a sample contains 21.2 g N, how many moles of N does it contain?

0.66 mol

1.51 mol

14.01 mol

297.01 mol

We have the following data:  

m (mass) = 21.2 g

MM (Molar mass of Nitrogen) = 14 g / mol

n (number of moles) = ?

Formula:  

n = \dfrac{m}{MM}

Solving:  

n = \dfrac{m}{MM}

n = \dfrac{21.2\:\diagup\!\!\!\!\!g}{14\:\diagup\!\!\!\!\!g/mol}

\boxed{\boxed{n\approx 1.51\:mol}}\end{array}}\qquad\checkmark

Answer:

1.51 mol

_______________________________

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

5 0
4 years ago
Read 2 more answers
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