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Aleksandr [31]
3 years ago
8

If one atom has 12 protons, 6 neutrons, and 6 electrons. And another one has 12 protons, 7 neutrons, and 8 electrons. Are both a

toms the same element why or why not?
Chemistry
2 answers:
Nataly [62]3 years ago
6 0
No because the second atom has 1 more neutron and 2 more electrons.
Darina [25.2K]3 years ago
5 0
No because the second atom has 1 more neutron 
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Calculate the freezing point of a 0.08500 m aqueous solution of nano3. the molal freezing-point-depression constant of water is
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Depression in freezing point (ΔT_{f}) = K_{f}×m×i,
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i = van't Hoff factor = 2 (For NaNO_{3})

Thus, (ΔT_{f}) = 1.86 X 0.0085 X 2 = 0.03162^{0}C

Now, (ΔT_{f}) = T^{0} - T
Here, T = freezing point of solution
T^{0} = freezing point of solvent = 0^{0}C
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How many milliliters of 1.50 M magnesium sulfate soulution is required to supply 2.50 mole of this salt?
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