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natima [27]
3 years ago
10

How would Mg change to gain a noble gas structure? lose 2 electrons gain 6 electrons

Chemistry
2 answers:
Gekata [30.6K]3 years ago
4 0
Are those the answers 
 hah because i got a little confused 

Paladinen [302]3 years ago
4 0

Answer: Magnesium atom looses 2 electrons to obtain the noble gas structure.

Explanation:

Atomic number of magnesium is 12. Electronic configuration of magnesium :

[Mg]=1s^22s^22p^63s^2

In the periodic table, the nearest noble gas to magnesium element is Neon with atomic number 10.

[Ne]=1s^22s^22p^6

So, in order to obtain noble gas electronic configuration the magnesium atom will loose 2 electrons.

[Mg^{2+}]=1s^22s^22p^6

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How many grams of calcium nitrate are needed to make 3.30 L of a 0.10 M solution?
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H</span>⁺<span> in the HNO₃<span> and </span></span>OH⁻<span> <span>of the KOH pair up and make </span></span>H₂O(l)<span>. </span><span>

NO</span>₃⁻<span> <span>and </span></span>K⁺<span> <span>pair up to make </span></span>KNO₃ salt<span>. </span><span>

<span>When writing chemical formulas </span>positive ion comes first<span> <span>and second is negative ion. The charges should be switched. Since </span></span>positive ion has +1 and negative ion has -1<span> <span>after the switching off charges </span>the </span>product should be KNO</span>₃.<span>

Balance equation is </span><span>
HNO</span>₃<span>(aq) + KOH(aq) → H</span>₂O(l) + KNO<span>₃(aq)</span><span>
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2. Salt is Ca(NO</span></span>₃)₂<span>

</span>This is a strong acid - strong base<span> reaction. </span>HNO₃ is the strong acid<span> and </span>Ca(OH)₂ is the strong base<span>. </span><span>
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H</span></span>⁺<span> in the HNO₃ and </span>OH⁻<span> of the Ca(OH)₂ pair up and make </span>H₂O(l)<span>. </span><span>

Ca²⁺ and </span>NO₃⁻<span>  pair up to make </span>Ca(NO₃)₂ salt<span>. </span><span>
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Balanced equation is 
</span>2HNO₃<span>(aq) + Ca(OH)</span>₂<span>(aq) → 2H</span>₂O(l) + Ca(NO<span>₃)₂(aq)</span><span>
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3. Salt is CaCl</span></span>₂<span>

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H</span></span>⁺<span> in the HCl and </span>OH⁻<span> of the Ca(OH)₂ pair up and make </span>H₂O(l)<span>. </span><span>

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Balance equation is 
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H</span></span>⁺<span> in the HCl and </span>OH⁻<span> of the KOH pair up and make </span>H₂O(l)<span>. </span><span>

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Balance equation is 
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