match of the unkwown ions to its appropriate description is as below
A-A)= A non metal that gained one electron.
B+B) = A metal that lost one electron
C2-C) = A non ,metal that gained two electrons
D2+D)= A metal that lost two electrons.
<u><em>Explanation</em></u>
<u> </u> Metal - form a positively charged ion by losing valence electrons ( electron in the outermost energy level).
For example Metal D loses 2 electrons to form D2+ ion.
Non metal form a negatively charged ion by gaining one or more electrons in order to fill it's valence shell .
For example non metal A gain 1 electron to form A- ion.
Answer:
The correct answer is: K'= 0.033.
Explanation:
The formation of HI from H₂ and I₂ is given by:
H₂ + I₂ → 2 HI K= 29.9
The decomposition of HI is the reverse reaction of the formation of HI:
2 HI → H₂ + I₂ K'
Thus, K' is the equilibrium constant for the reverse reaction of formation of HI. It is calculated as the reciprocal of the equilibrium constant of the forward reaction (K):
K' = 1/K = 1/(29.9)= 0.033
Therefore, the equilibrium constant for the decomposition of HI is K'= 0.033
Answer: longhand notation
Explanation: I just did it on Edg
All of these elements have an electron configuration<span> that ends with </span><span>s1</span><span>. Francium's properties have not been determined experimentally, because so far there has not been enough of it to experiment with </span>Sodium is group 1/IA, the alkali metals, on the periodic table. Therefore, the other elements in this group will have similar properties as sodium. These would include, lithium<span>, potassium, </span>rubidium<span>, and </span>cesium<span>.
Hope this is the answer
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