Ateen is making iced coffee and would like it sweeter but is unable to get the sugar to dissolve. what method could dissolve more sugar in the iced coffee?
a. add the sugar right after the coffee has brewed, while it is still hot.
b. keep adding sugar at longer time intervals.
c. wait for the ice to dissolve to then add sugar.
d. measure the amount of sugar more accurately.

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.