Changes In States Of Matter-knupp
It is about changes in states of matter.
Questions and Answers
- 1.
What forms a solid to a liquid?
- A.
Melting
- B.
Freezing
- C.
Boiling
Correct Answer
A. MeltingExplanation
Melting is the process in which a solid substance changes into a liquid state. This occurs when heat is applied to the solid, causing the particles to gain energy and vibrate more rapidly. As a result, the intermolecular forces holding the particles together weaken, allowing them to move more freely and form a liquid. Melting is the opposite of freezing, where a liquid substance changes into a solid state. Boiling, on the other hand, is the process in which a liquid changes into a gas state.Rate this question:
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- 2.
What forms from a liquid to a solid?
- A.
Freezing
- B.
Boiling
- C.
Condensation
Correct Answer
A. FreezingExplanation
When a substance undergoes freezing, it changes from a liquid state to a solid state. This process occurs when the temperature of the substance decreases below its freezing point, causing the particles to slow down and arrange themselves into a more organized, rigid structure. As a result, the substance loses its ability to flow and becomes solid.Rate this question:
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- 3.
What goes from a liquid to a gas?
- A.
Evaporation
- B.
Boiling
- C.
Condensation
Correct Answer
B. BoilingExplanation
Boiling is the process in which a liquid rapidly changes into a gas by the formation of bubbles. It occurs when the temperature of the liquid reaches its boiling point, which is specific to each substance. During boiling, the molecules in the liquid gain enough energy to overcome the attractive forces holding them together, causing them to separate and form a gas. This process is different from evaporation, which is the slower and gradual conversion of a liquid into a gas at temperatures below its boiling point. Condensation, on the other hand, is the opposite process, where a gas changes into a liquid.Rate this question:
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- 4.
What goes from a gas to a liquid?
- A.
Condensation
- B.
Boiling
- C.
Freezing
Correct Answer
A. CondensationExplanation
Condensation is the process by which a gas transforms into a liquid. This occurs when the gas cools down and loses energy, causing the particles to come together and form a liquid. This can be observed, for example, when water vapor in the air condenses into droplets on a cold surface. Boiling, on the other hand, is the process of a liquid turning into a gas, while freezing is the process of a liquid turning into a solid.Rate this question:
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- 5.
Forms from a liquid to a gas
- A.
Vaporization
- B.
Evaporization
- C.
Condensation
Correct Answer
B. EvaporizationExplanation
Evaporization is the process by which a liquid changes into a gas. It occurs when the molecules of a liquid gain enough energy to overcome the forces of attraction between them and escape into the surrounding environment as gas molecules. This process is commonly observed when water evaporates and turns into water vapor. The term "vaporization" is also used interchangeably with evaporization to describe this phase change. Condensation, on the other hand, is the opposite process where a gas changes into a liquid.Rate this question:
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- 6.
Forms a solid.
- A.
Sublimation
- B.
Freezing
- C.
Solidification
Correct Answer
C. SolidificationExplanation
Solidification refers to the process in which a substance changes from a liquid or gas state to a solid state. This process typically occurs when the temperature of the substance decreases below its freezing point. During solidification, the particles of the substance come together and arrange themselves in a regular pattern, forming a solid. Sublimation, on the other hand, is the process in which a substance directly changes from a solid to a gas without passing through the liquid state. Therefore, solidification is the correct answer as it accurately describes the formation of a solid.Rate this question:
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- 7.
Forms a gas.
- A.
Boiling
- B.
Vaporization
- C.
Condensation
Correct Answer
B. VaporizationExplanation
Vaporization is the process in which a substance changes from its liquid state to a gas state. When a substance undergoes vaporization, it gains enough energy to overcome the forces of attraction between its particles, causing them to break free and form a gas. This process can occur through boiling, where the substance reaches its boiling point and rapidly vaporizes, or through evaporation, where the substance slowly vaporizes at temperatures below its boiling point. Therefore, vaporization is the correct answer as it accurately describes the process of a substance forming a gas.Rate this question:
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- 8.
Forms a liquid.
- A.
Condensation
- B.
Melting
- C.
Liquefaction
Correct Answer
C. LiquefactionExplanation
Liquefaction refers to the process of converting a substance from a solid or gas state into a liquid state. It involves the application of heat or pressure to the substance, causing its particles to come closer together and form a liquid. Therefore, liquefaction is the correct answer as it accurately describes the process of forming a liquid.Rate this question:
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- 9.
What forms a solid to a gas?
- A.
Sublimation
- B.
Freezing
- C.
Condensation
Correct Answer
A. SublimationExplanation
Sublimation is the process by which a solid directly converts into a gas without going through the liquid phase. This occurs when the substance's vapor pressure exceeds its atmospheric pressure at a given temperature. Therefore, sublimation is the correct answer because it describes the specific phase change from solid to gas.Rate this question:
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- 10.
What needs heat?
- A.
Endothermic
- B.
Sublimation
- C.
Exothermic
Correct Answer
A. EndothermicExplanation
Endothermic processes require heat in order to occur. This means that energy is absorbed from the surroundings and transferred into the system. In the context of the question, "What needs heat?", the correct answer is "endothermic" because endothermic processes require heat to proceed. Sublimation refers to the process of a substance transitioning directly from a solid to a gas phase without passing through the liquid phase. Exothermic processes, on the other hand, release heat into the surroundings.Rate this question:
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- 11.
What gives off heat?
- A.
Exothermic
- B.
Endothermic
- C.
Sublimation
Correct Answer
A. ExothermicExplanation
Exothermic processes release heat energy to the surroundings. This means that the substances involved in exothermic reactions give off heat as a byproduct. It is the opposite of endothermic processes, where heat energy is absorbed from the surroundings. Sublimation, on the other hand, refers to the phase transition from solid to gas without going through the liquid phase, and it does not necessarily involve the release or absorption of heat. Therefore, exothermic is the correct answer as it specifically refers to a process that gives off heat.Rate this question:
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- 12.
mothballs disappear into the air as gas.
- A.
Melting
- B.
Condensation
- C.
Boiling
Correct Answer
B. CondensationExplanation
Mothballs are solid balls made of chemicals that slowly evaporate into the air over time. This process is called sublimation, where a solid directly changes into a gas without going through the liquid phase. Therefore, the statement that mothballs disappear into the air as gas is incorrect. The correct answer is condensation, which is the process of a gas changing into a liquid.Rate this question:
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- 13.
Over time _____________occurs and the puddles gradually disappear.
Correct Answer
freezing
soliification
evaporationExplanation
Over time, freezing occurs and the puddles gradually disappear.Rate this question:
- 14.
Lava cools, it hardens into rock
- A.
Solidification
- B.
Sublimation
- C.
Boiling
Correct Answer
A. SolidificationExplanation
When lava cools, it loses its heat energy and transforms from a liquid state to a solid state. This process is known as solidification. As the lava cools, the molecules slow down and arrange themselves in a more ordered structure, forming solid rock. This transformation occurs due to the decrease in temperature, causing the lava to harden and solidify into rock.Rate this question:
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- 15.
As the candy was heated, it bubbled over.
- A.
Freezing
- B.
Boiling
- C.
Vaporization
Correct Answer
B. BoilingExplanation
When a substance undergoes boiling, it is heated to its boiling point, causing it to change from a liquid to a gas. In this scenario, the candy is heated, which leads to the formation of bubbles and the candy overflowing. This is consistent with the process of boiling, where the rapid formation of gas bubbles causes the substance to bubble over.Rate this question:
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- 16.
The temperature is low enough to harden ice cream
- A.
Boiling
- B.
Solidification
- C.
Freezing
Correct Answer
C. FreezingExplanation
Freezing is the process by which a substance changes from a liquid to a solid state due to a decrease in temperature. In the context of the given statement, when the temperature is low enough, it causes the ice cream to harden and solidify, which is a characteristic of freezing. Boiling refers to the process of a liquid changing into a gas state due to an increase in temperature, and solidification is the general term for the process of a substance changing from a liquid to a solid state.Rate this question:
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- 17.
The oxygen in the air will become a liquid
- A.
Liquefaction
- B.
Condensation
- C.
Boililng
Correct Answer
A. LiquefactionExplanation
Liquefaction refers to the process of converting a gas into a liquid state. In the given statement, it is implied that the oxygen in the air will undergo a change in state and become a liquid. This process is known as liquefaction.Rate this question:
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- 18.
Can turn water into water vapor
- A.
Sublimation
- B.
Freezing
- C.
Boiling
Correct Answer
A. SublimationExplanation
Sublimation is the process where a substance directly changes from a solid to a gas without going through the liquid phase. This means that it can turn water into water vapor without first becoming a liquid. Freezing is the process where a substance changes from a liquid to a solid, and boiling is the process where a substance changes from a liquid to a gas. Therefore, sublimation is the correct answer as it describes the specific process of turning water into water vapor without going through the liquid phase.Rate this question:
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- 19.
Water vapor in the air changed to into dew on the grass
- A.
Freezing
- B.
Vaporization
- C.
Sublimation
Correct Answer
B. VaporizationExplanation
Vaporization refers to the process of a liquid changing into a gas. In this scenario, the water vapor in the air undergoes vaporization and changes into dew on the grass.Rate this question:
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- 20.
Liquid at a lower temperature than do most metals.
- A.
Melting
- B.
Boiling
- C.
Freezing
Correct Answer
A. MeltingExplanation
Melting refers to the process in which a substance changes from a solid state to a liquid state. The answer suggests that the substance in question has a lower melting point compared to most metals. This means that it can transition into a liquid form at a lower temperature than metals typically require.Rate this question:
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- 21.
In a cold climate water _________.
Correct Answer
freezing
boiling
meltingExplanation
In a cold climate, water can undergo different processes depending on the temperature. When the temperature drops below 0 degrees Celsius, water freezes and turns into ice. This is why freezing is a correct answer. However, when the temperature rises above 100 degrees Celsius, water boils and turns into vapor. This is why boiling is also a correct answer. Lastly, when the temperature is between 0 and 100 degrees Celsius, water can melt and change from a solid state to a liquid state. Therefore, melting is also a correct answer.Rate this question:
- 22.
After summer rain puddles disappear.
- A.
Freezing
- B.
Evaporation
- C.
Sublimation
Correct Answer
B. EvaporationExplanation
Evaporation is the process by which a liquid, in this case, the water in the puddles, turns into a gas and escapes into the atmosphere. After summer rain, the sun's heat causes the water in the puddles to evaporate, resulting in the disappearance of the puddles. This process occurs as the water molecules gain enough energy to break free from the liquid and become water vapor.Rate this question:
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Current Version
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Mar 20, 2023Quiz Edited by
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Feb 17, 2009Quiz Created by
Ligonier
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