Answer:
Covalent compounds are held by intermolecular forces while network solids are held by strong bonds in unit cells which are closely packed together.
Explanation:
Covalent compound molecules are held by vanderwaals forces which are relatively weak but strong enough to hold some covalent molecules together in the solid state. However, network solids contain atom to atom covalent bonds arranged in an orderly manner and regular repeating unit cells to form a rigid three dimensional network solid.
Answer:
single displacement reaction
Answer:
Redox is a type of chemical reaction in which the oxidation states of atoms are changed.
Answer : The Lewis-dot structure of
is shown below.
Explanation :
Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.
In the Lewis-dot structure the valance electrons are shown by 'dot'.
The given molecule is, 
As we know that carbon has '4' valence electrons, hydrogen has '1' valence electron, nitrogen has '5' valence electrons and oxygen has '6' valence electrons.
Therefore, the total number of valence electrons in
= 4 + 3(1) + 5 + 2(6) = 24
According to Lewis-dot structure, there are 14 number of bonding electrons and 10 number of non-bonding electrons.
Now we have to determine the formal charge for each atom.
Formula for formal charge :








Hence, the Lewis-dot structure of
is shown below.