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Karolina [17]
2 years ago
5

Please help me with this

Chemistry
2 answers:
ratelena [41]2 years ago
5 0

Explanation:

Magnesium representation : 1s²2s²2p⁶3s².

therefore, to become Mg2+ ion Magnesium losses electron from its 3s orbital to form 1s²2s²2p⁶.

therefore option C is correct.

hope this helps you.

yaroslaw [1]2 years ago
3 0

Answer:

3s orbital

Explanation:

3s is the outermost orbital of magnesium and it loses electron from it, it doesnt even have 4f, 5p or 3d orbitals.

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Answer: The enthalpy of combustion, per mole, of butane is -2657.4 kJ

Explanation:

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Putting the values we get :

\Delta H=[8\times H_f_{CO_2}+10\times H_f_{H_2O}]-[2\times H_f_{C_4H_{10}+13\times H_f_{O_2}}]

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3 years ago
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