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john dalton's atomic theory contains 4 postulates. which postulate(s) still hold(s) true today. mark all that apply. *

atoms of different elements can combine physically and chemically.
atoms are indivisible.
chemical reactions occur when atoms are joined or separated.
atoms of the same element are identical.

In which of these cases are the two wave points considered to be in phase with each other?

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

The density of benzene at 15 °c is 0.8787 g/ml. calculate the mass of 0.1500 l of benzene at this temperature. enter your answer in terms of grams