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- 1. Multiple Choice
The figure shows how the temperature of a solid material changes as it is heated.
What are the states of matter at region B?solidliquidsolid and liquidliquid and gas - 2. Multiple ChoiceThe graph shows how the temperature of wax changes as it cools from liquid to solid.
What is the melting point of the wax?65798185 - 3. Multiple ChoiceWhich of the following is true when water is heated from 20oC to 50oC?Potential energy of the water particles increaseKinetic energy of the water particles increasePotential energy of the water particles decreaseKinetic energy of the water particles decrease
- 4. Multiple ChoiceWhat is the process when gas changes to liquid?meltingboilingcondensationfreezing
- 5. Multiple ChoiceWhich of the following is NOT a difference between boiling and evaporation?one is fast while the other is slowone occurs throughout the liquid while the other only on the surfaceone occurs at a fixed temperature while the other at any tempratureone has lots of bubbles formed while the other has a few bubbles formed
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