The phase change in which a substance changes from a solid to a liquid is A. freezing. B. melting. C. sublimation. D. condensation.

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The phase change in which a substance changes from a solid to a liquid is melting.

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Updated 2/26/2015 3:09:01 AM

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jeifunk

according to john daltons observations, when elements combine in a compound, the ratio of their masses is always the same.

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matter that has a definite volume but no definite shape is a A. liquid. B. solid. C. gas. D. plasma.

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Updated 2/26/2015 2:39:36 AM

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If a solid piece of naphthalene is heated and remains at 80°C until it is completely melted, you know that 80ºC is the A. freezing point of naphthalene. B. melting point of naphthalene. C. boiling point of naphthalene. D. both a and b

Weegy: Both a and b. If a solid piece of naphthalene is heated and remains at 80 C until it is completely melted, you know that 80 C is the: freezing point of naphthalene, and melting point of naphthalene. User: Matter that has a definite volume but no definite shape is a A. liquid. B. solid. C. gas. D. plasma. (More)

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Updated 2/26/2015 2:41:27 AM

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jeifunk

Matter that has a definite volume but no definite shape is a LIQUID.

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Which of the following statements about ice melting is true? A. Energy flows from the ice to its surroundings. B. Water molecules move from their fixed position. C. Water molecules lose energy. D. The temperature of the ice increases as it melts.

Weegy: The following statement about ice melting is true: water molecules move from their fixed positions. (More)

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Updated 2/26/2015 2:39:29 AM

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The heat of fusion for water is the amount of energy needed for water to A. freeze. B. boil. C. melt. D. evaporate.

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Updated 2/26/2015 2:48:12 AM

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jeifunk

Collisions of helium atoms with the walls of a closed container cause a gas pressure.

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