According to the equation HCl + NaOH → NaCl + H2O,
the total number of moles of HCl that can be
neutralized by 80 grams of NaOH is

2 moles of HCl.

Explanation:

Given data:

Mass of NaOH = 80 g

Number of HCl neutralized by NaOH = ?

Solution:

Chemical equation:

NaOH + HCl         NaCl + H₂O

Number of moles of NaOH:

Number of moles = mass/ molar mass

Number of moles = 80 g/ 40 g/mol

Number of moles = 2 mol

Now we will compare the moles of NaOH and HCl,

               NaOH       :         HCl

                   1            :           1

                 2             :            2

Thus, 2 moles of HCl will neutralized by 80 gram of NaOH.

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.