Answer:
To have the electronic configuration equal to 1s²2s²2p⁶3s²3p⁶4s²3d⁷, the chemical element must have an electrical charge equal to 27, that is, it must have 27 electrons, such as Cobalt (Co), for example.
Explanation:
The electronic configuration shown in the question above is known as the Linus Pauling distribution and represents the energy sub-levels that an electrically charged atom can have in relation to the amount of electrons it has.
The layers sub-levels are presented in the following order 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹º 4p⁶ 5s² 4d¹º 5p⁶ 6s² 4f14 5d¹º 6p⁶ 7s² 5f14 6d¹º 7p⁶. Where the small numbers represent the number of electrons in each sub-level and the large numbers represent the layers of electronic distribution.
Accordingly, we can see that an atom that has the configuration 1s²2s²2p⁶3s²3p⁶4s²3d⁷ has 27 electrons, like Cobalt.
The question is asking to calculate and give the formulas for the mercury bromide, base on my research, the answer would be <span>HgBr, I hope you are satisfied with my answer and feel free to ask for more if you have questions and further clarifications </span>
Ice is simply just frozen water, so it's formula would be the same was water: H2O
1) The amount of PbS produced will be 16.27 grams
2: The amount of Fe produced will be 118.72 grams.
<h3>Stoichiometric problems</h3>
1) The equation is balanced. The mole ratio of lead (II) acetate to the PbS is 1:1.
Mole of 22.11 lead acetate = 22.11/ 325.29 = 0.06797 moles
Equivalent mole of PbS = 0.06797 moles
Mass of PbS = 0.06797 x 239.3 = 16.27 grams
2) from the equation, the mole ratio of Al to Fe is 1:1.
Mole of 57.2 g Al = 57.2/26.98 = 2.12 moles
Equivalent mole of Fe = 2.12 moles
Mass of Fe = 2.12 x 56 = 118.72 grams.
More on stoichiometric problems can be found here: brainly.com/question/14465605
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Explanation:
Molecules which are either polar in nature or contain a polar covalent bond are able to dissolve in water. This is because like dissolves like.
For example, 
is a polar covalent compound and when it is dissolved in water then its reaction is as follows.
This shows that a chemical reaction will take place when is dissolved in water.
Also, HI is a polar covalent compound and it will readily dissolve in water as hydrogen iodide (HI) is a polar covalent molecule.
On the other hand, 
, 
, and 
does not dissolve in water as all of these are non-polar covalent compounds.
Thus, we can conclude that the gas most likely to dissolve in water as a result of chemical reaction is and the gas most likely to dissolve in water because of strong intermolecular interactions is HI.
