What is the chemical formula for h2o?

H20 is actually already a chemical formula for water, so the chemical formula would just be H20

Let me know if you need nay other help:)

c. electrical charges of ionic bonds.

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.