% composition of ethanol = 34.51%
% composition of water = 65.49%
<h3>What is density?</h3>A material's density is defined as its mass per unit volume.
Given data:
The density of ethanol = 0.7890 g/mL
The density of water = 0.9982 g/mL
The density of mixture = 0.926 g/mL
Let the % composition of ethanol = x
Let the % composition of water = 100-x
Now density of the mixture
%
Hence,
% composition of ethanol = 34.51%
% composition of water = 65.49%
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Answer :
Covalent compound : It is defined as the compound which is formed by the sharing of electrons between the atoms forming a compound.
The covalent compound are usually formed when two non-metals react.
Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.
All the polyatomic ions always form an ionic compound.
Polyatomic ions : It is a charged species that composed of two or more atoms and these charged species are bonded by the covalent bond.
For the given options:
Option A:
This compound is formed by the combination of potassium, which is a metal and
ion which is a polyatomic ion. Thus, it will form an ionic compound.
Option B:
This compound is formed by the combination of magnesium, which is a metal and
ion which is a polyatomic ion. Thus, it will form an ionic compound.
Option C:
Hydrogen and sulfur, both are non-metals and they will form a covalent compound.
Option D:
This compound is formed by the combination of silver, which is a metal and sulfur,
which is a non-metal. Thus, it will form an ionic compound.
Option E:
Nitrogen and chlorine, both are non-metals and they will form a covalent compound.
Option F:
This compound is formed by the combination of cobalt, which is a metal and
ion which is a polyatomic ion. Thus, it will form an ionic compound.