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Montano1993 [528]
3 years ago
7

How many atoms are in 187 g of Calcium?

Chemistry
1 answer:
N76 [4]3 years ago
4 0
Atomic mass Calcium ( Ca) = 40.078 u.m.a

40.078 g --------------- 6.02x10²³ atoms
187 g ------------------- ??

187 x ( 6.02x10²³) / 40.078 =

1.125x10²⁶ / 40.078 = 2.808x10²⁴ atoms

hope this helps!




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6 0
2 years ago
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tiny-mole [99]

Answer:

an estimate of the strength of a bond.

Explanation:

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8 0
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For Na₂O,

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                                                   ________

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For CO₂,

                    E.N of Oxygen       =   3.44

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