Explain the following: a) Why does increasing the temperature cause a substance to change in succession from a solid to a liquid to a gas? Explain. b) Explain why a liquid has a definite volume but a gas does not? c) Discuss how does an amorphous solid differs from a crystalline solid?

The heat of vaporization of water is 40.66 kJ/mol. How much heat is absorbed when 1.59 g of water boils at atmospheric pressure?.

Given: Drop of water, air around clouds and ice sculpture 1. What determines the state of a material? How do you know whether a material is solid liquid or gas? 2. What accounts for the similarities in the materials(ice sculpture, drop of water and air around coulds)?

How are sublimation and evaporation the same and how are they different? Edit View Insert Cormes

Calculate the mass of water that can be vaporized with 211 kJ of heat at the boiling point.

List four distinctions between crystalline and amorphous solids with one example of each.

A shiny black solid has a melting point of 114 C. It does not conduct electricity and it does not dissolve in water to form a conducting solution. The black solid is not as hard as an ionic crystal. What type of solid is this substance? Justify your answer.

Decide what kind of crystalline solid each element or compound in the table forms, and what kind of force holds the solid together. Then, rank the solids in order of decreasing melting point. That is, select "1" next to the solid with the highest melting point, "2" next to the solid with the next highest melting point, and so on. (You may need to use the scrollbar to see all the choices.) element type of solid formed melting point force holding the solid together or of solid compound N, ? ? ? HCI ?