Question 8: lonic and Covalent Compounds Identify each of the following as a covalent compound or ionic compound. Then provide either
the formula for compounds identified by name or the name for those identified by formula.
a. Na20:
b. Phosphorous trichloride:
c. N2O5
d. CaBr2:
e. Fe2O3 :

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;

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.