Calculate the number of coulombs of positive charge in 263 cm3 of (neutral) water. (hint: a hydrogen atom contains one proton; an oxygen atom contains eight protons.)

Since, hydrogen atom consist of one proton and an oxygen atom consist of eight protons.

Now, density of water is 1 g/ml

Given volume = = 263 mL

So, weight of water = 263 g

Number of moles of water =

=

= 14.61 g/mol

Number of protons =

=  

As, charge on one proton =

Thus, total charge =

=

=  

Thus, is the total number of coulombs of positive charge.

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.