From left, an orange H, then 1 black dot above 1 orange dot, then a black O with 2 black dots both above and below, then 1 black dot above 1 orange dot, then an orange H. Refer to the diagram to complete the sentence with the correct numbers.

When hydrogen shares electrons with oxygen, the outermost shell of the hydrogen atoms are full with
electrons and oxygen’s valence shell is full with
electrons. Because the valence shells of these atoms are full, the atoms are stable.

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.

lab safety rules

explanation: