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vazorg [7]
3 years ago
14

On the basis of the reactions observed in the six test tubes, explain why the position of hydrogen cannot be fixed exactly with

respect to all of the other elements listed in the activity series in g
Chemistry
1 answer:
kifflom [539]3 years ago
7 0

Explanation :

Hydrogen is first atom of periodic table and has only one electron in its orbital.

It can released its single electron easily and exist as H^{+} ion as well as it can easily accepts an electron to complete its octet and exist as H^{-} therefore it placed in group-1 (alkali metals) as well as group-17 (halogens).

Conclustion:

It can easily released electron and accepts electron therefore its position is not fixed with respect to other elements.

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swat32
Q = mCpΔT —> Solve for Cp —> Cp = q/mΔT

q = -6700 J (negative because it released heat
m = 70 g
ΔT = Final temp - initial temp = 25 - 90 = -65°C

Cp = -6700 J / (70 g)(-65°C) = 1.47 J/g°C
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