What is the boiling temperature of a single water molecule? Does this question make sense?
A) Boiling involves the separation of many molecules (plural). With only one molecule, the concept of boiling is meaningless.
B) Yes, this question does make sense because temperature measures the average kinetic energy of a molecule, which is 100C for water.
C) 100C indicates when the covalent bonds of the water molecule has been broken to give rise to hydrogen and oxygen atoms which are released into atmosphere.
D) No, this question does not make sense because you need at least two molecules to get the average kinetic energy.
Question 2
A TV screen looked at from a distance appears as a smooth continuous flow of images. Up close, however, we see this is an illusion. What really exists are a series of tiny dots (pixels). This is similar to a chemist's view of matter in that ________.
A) the fundamental particles of matter can also be seen when looked at closely with a magnifying glass
B) on the submicroscopic level, chemist's find that matter is made of extremely small particles, such as atoms and molecules.
C) anything that a chemist can see, touch, hear, smell, or taste is an illusion
D) elements are made up of only three basic types of matter
NaCl crystals dissolving in water
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Single bull elk are vulnerable to predation by wolves.
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The population of Asia increases rapidly, the demand for food and water is also growing