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arlik [135]
3 years ago
14

Predict the sign of enthalpy for reaction f+f=f2

Chemistry
1 answer:
guajiro [1.7K]3 years ago
6 0
6+6=12


is your answer
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Nitrogen has two isotopes. One has an atomic mass of 14.003
Ilia_Sergeevich [38]

Answer:

d= 14.007 amu

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Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

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How many atoms are in four molecules of oxygen gas ​
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