Hydrogen reacts with an element to form a compound. which element would have the most valence electrons available to react with
1 answer:
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Answer :
1.)
Calcium has 2 valence electrons and chlorine has 7 valence electrons. For neutral molecule, 2 chlorine atoms share their valence electrons with 1 calcium atom. The bonds are formed between the calcium and chlorine atom.
2.)
Aluminium has 3 valence electrons and fluorine has 7 valence electrons. For neutral molecule, 3 fluorine atoms share their valence electrons with 1 aluminium atom. The bonds are formed between the aluminium and fluorine atom.
3.)
Hydrogen has 1 valence electron and chlorine has 7 valence electrons. For neutral molecule, 1 chlorine atom share their valence electrons with 1 hydrogen atom. The bonds are formed between the hydrogen and chlorine atom.
4.)
Hydrogen has 1 valence electron and sulfur has 6 valence electrons. For neutral molecule, 2 hydrogen atoms share their valence electrons with 1 sulfur atom. The bonds are formed between the hydrogen and sulfur atom.
5.)
Chlorine has 7 valence electrons. For neutral molecule, 1 chlorine atom share their valence electrons with 1 chlorine atom. The bonds are formed between chlorine and chlorine atom.
The lewis-dot structure image is shown below.
To calculate empirical formula, number of moles of different atoms calculated first:
Number of moles of Carbon , n=
=
=
= 0.220 mol
Number of moles H =
=
= 0.440 mol
Number of moles of oxygen =
=
= 0.440 mol
Ratio of carbon
=
= 1
Ratio of hydrogen
=
= 2
Ratio of oxygen
=
= 2
So, the empirical formula is CH₂O₂