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Anni [7]
3 years ago
13

_______ reach the surface first during an earthquake.

Chemistry
1 answer:
pentagon [3]3 years ago
5 0
Answer:p waves hope that helps
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Convert to moles:<br> 100.0g Ca3(PO4)2
salantis [7]

Answer:

0.322 moles

Explanation:

Given Mass, m = 100 g

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Ca₃(PO₄)₂ = (3 x 40.08) + (2 x 30.97) + (8 x 16.00)

M = 310.18 g/mol

Let there are n number of moles,

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n=\dfrac{100 }{310.18 }\\\\n=0.322\ mol

So, there are 0.322 moles.

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Why then is a diamond extremely hard and sparkly and Graphite is soft and gray and dull ?
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