Apply relevant knowledge to briefly explain the following questions:

(1) Is it because the molecules are constantly moving?

(2) Is it because of the arrangement of carbon atoms? Different

(3) Its meaning is "No Smoking",

(1) Concentrated ammonia is volatile, and the molecules of ammonia are constantly moving. In order to prevent the ammonia molecules from Movement spreads, so concentrated ammonia should be sealed and stored.

(2) Diamond, graphite, and C 60 are all allotropes of carbon. Because their carbon atoms are arranged differently, their physical properties are quite different.

(3) The sign as shown in the picture means no smoking; because there are suspended particles in the air in gas stations, flour mills and other places, which can easily burn and cause explosions, so they must be used in these places. Smoking is strictly prohibited.

So the answer is: (1) Molecules are constantly moving; (2) Carbon atoms are arranged in different ways; (3) Smoking is prohibited; gas stations and flour mills.