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Which of the following is an exothermic change?
Liquid changes to a vapor throughout the liquid.
It is a physical change.
It is an endothermic process.
Molten iron becoming an iron peg.
Condensation
Process in which a solid changes directly to a gas
The volume of the gas increases, and the speed of the particles decreases.
Condensation
Which of the following describes what happens as the temperature of a gas in a balloon increases?
Liquid changes to a vapor throughout the liquid.
It is a physical change.
It is an endothermic process.
Molten iron becoming an iron peg.
Condensation
Process in which a solid changes directly to a gas
The volume of the gas increases, and the speed of the particles decreases.
Condensation
What happens when a liquid starts to boil?
Liquid changes to a vapor throughout the liquid.
It is a physical change.
It is an endothermic process.
Molten iron becoming an iron peg.
Condensation
Process in which a solid changes directly to a gas
The volume of the gas increases, and the speed of the particles decreases.
Condensation
Water evaporating is what type of change.
Liquid changes to a vapor throughout the liquid.
It is a physical change.
It is an endothermic process.
Molten iron becoming an iron peg.
Condensation
Process in which a solid changes directly to a gas
The volume of the gas increases, and the speed of the particles decreases.
Condensation
Which is an exothermic process?
Liquid changes to a vapor throughout the liquid.
It is a physical change.
It is an endothermic process.
Molten iron becoming an iron peg.
Condensation
Process in which a solid changes directly to a gas
The volume of the gas increases, and the speed of the particles decreases.
Condensation
What is sublimation?
Liquid changes to a vapor throughout the liquid.
It is a physical change.
It is an endothermic process.
Molten iron becoming an iron peg.
Condensation
Process in which a solid changes directly to a gas
The volume of the gas increases, and the speed of the particles decreases.
Condensation
Adding energy to a substance's particles is what kind of process?
Liquid changes to a vapor throughout the liquid.
It is a physical change.
It is an endothermic process.
Molten iron becoming an iron peg.
Condensation
Process in which a solid changes directly to a gas
The volume of the gas increases, and the speed of the particles decreases.
Condensation
During which change of state do atoms or molecules become more ordered?
Liquid changes to a vapor throughout the liquid.
It is a physical change.
It is an endothermic process.
Molten iron becoming an iron peg.
Condensation
Process in which a solid changes directly to a gas
The volume of the gas increases, and the speed of the particles decreases.
Condensation
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