Water typically exist in its gaseous state in the atmosphere. Fog contains droplets of liquid water suspended in the air. Thus to produce a fog, vapor in the air would undergo condensation with a state change from gas to liquid.
Intermolecular interactions between water molecules strengthen as the vapor condenses to produce a liquid. The condensation of vapor thus involves a production of energy. With all the extra intermolecular interactions, molecules in the fog would find it more difficult to move around and therefore see a decrease in their motion.
The answer to your question is b
C. It show how many moles are used of each substance.
Answer:
Each glucose molecule is composed of C6H12O6. This means one mol of glucose contains 6 mol of oxygen. So 5 mol of glucose contains 5*6 = 30 mol of oxygen. As the chemical formula for glucose is C6H12O6, so the number of oxygen atoms in 5 moles of glucose is 30.