I think it would have 10 neutrons. Hope this helps :)
T K = ºC + 273
T = 63 + 273
T = 336 K
hope this helps!
Answer:
C
Explanation:
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Mass to moles
5.2 mol/Ca(no3)2 to mol
5.2 mol/Ca(no3)2 / molar mass
5.2 mol/Ca(no3)2 / 164.1= 0.032 g/Ca(no3)2