A picometer (pm) is equal to 1 x 10-12m. O-H bond lengths in water are 95.8 pm, while S-H bond lengths in dihydrogen sulfide are 135 pm. Why are S-H bond lengths longer than O-H bond lengths? Hint: consider the size of the atoms of the different elements.

how to make a simple air condition

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.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.