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- 1. Multiple Choice
What line segment represents only the solid state?A-BB-CC-DD-E - 2. Multiple ChoiceBetween which points is the temperature of the substance remaining constant?A-B only.A-B, C-D, E-FB-C only.B-C, D-E
- 3. Multiple Choice
Between which two points is the substance melting?
A <----> B
B <----> C
C <----> D
D <----> E
E <----> F
- 4. Multiple Choice
Between which two points is the substance boiling?
A <----> B
B <----> C
C <----> D
D <----> E
E <----> F
- 5. Multiple ChoiceIn which segment is the kinetic energy remaining constant?A-BB-CC-DE-F
- 6. Multiple ChoiceA substance's heating curve is shown in the graph. What is its boiling point?100 C60 C80 C20 C
- 7. Multiple ChoiceThe graph shows a cooling curve for an unknown substance. What is happening during segment DE?boilingcondensationfreezingmelting
- 8. Multiple ChoiceWhat line segment represents only the solid state?A-BB-CC-DD-E
- 9. Multiple ChoiceWhat state(s) of matter are present at D-E?Solid-liquidLiquidLiquid-gasGas-Solid
- 10. Multiple ChoiceTrue or false: melting and freezing occur at the same temperature!TrueFalseI don't know
- 11. Multiple ChoiceWhich of these conditions is always true for an exothermic process?They leave the surroundings feeling coldThey release energy into the surroundings.They absorb energy from the surroundingsThe reactants gain energy as they form the products
- 12. Multiple ChoiceWhich of the following terms identifies the change from a liquid to gas?VaporizationCondensationDepositionSublimation
- 13. Multiple ChoiceWhen the temperature of matter increases the particles...speed up and move closerspeed up and move farther apartslow down and move closer togetherslow down and move farther apart
- 14. Multiple Choice
From point A to point E, the sample is going through an
exothermic process by releasing heat to the surroundings
exothermic process by absorbing heat from the surroundings
endothermic process by releasing heat to the surroundings
endothermic process by absorbing heat from the surroundings
- 15. Multiple Choice
The melting point of the sample is
-60 ºC
-100 ºC
60 ºC
100 ºC
- 16. Multiple Choice
When you freeze water, it turns to ice. What kind of change is this?
endothermic
exothermic
- 17. Multiple ChoiceEvaporation is what kind of change?EndothermicExothermic
- 18. Multiple Choice
What line segment represents only the liquid state?
A-B
B-C
C-D
D-E
- 19. Multiple Choice
What line segment represents only the gas state?
A-B
B-C
C-D
E-F
- 20. Multiple Choice
Between which points is the temperature of the substance changing?
A-B only.
A-B, C-D, E-F
B-C only.
B-C, D-E
- Answer choicesTagsAnswer choicesTags