Physical And Chemical Properties Of Matter
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Questions and Answers
- 1.
Describe several physical and chemical properties of an Alka-Seltzer . Describe physical and chemical cahnges that occur as an Alka-Seltzer in a glass of water.
- 2.
Describe physical or chemical changes that occur when you make instant coffee.
- 3.
Is a solution of salt in sand homogeneous or heterogeneous? Describe a physical means of separating these two materials.
- 4.
Classify each of the following as a chemical change
- A.
Melting butter
- B.
Bleaching hair
- C.
Getting permanent that curls your hair
- D.
Dissolving road grease on your car with a commercial solvent
Correct Answer(s)
B. Bleaching hair
C. Getting permanent that curls your hair
D. Dissolving road grease on your car with a commercial solventExplanation
Melting butter is a physical change because it involves a change in state from solid to liquid without any change in the chemical composition of the butter. Bleaching hair is a chemical change because it involves the use of chemicals to alter the color of the hair. Getting a permanent that curls your hair is also a chemical change as it involves the use of chemicals to permanently change the structure of the hair. Dissolving road grease on your car with a commercial solvent is a physical change as it involves the dissolution of the grease in the solvent without any change in the chemical composition of the grease.Rate this question:
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- 5.
Classify each of the following as a physical change
- A.
Dissolving road grease on your car with a commercial solvent
- B.
Melting butter
- C.
Bleaching hair
- D.
Changes of temperature
Correct Answer(s)
B. Melting butter
D. Changes of temperatureExplanation
The melting of butter is a physical change because it involves a change in the state of matter from solid to liquid without altering the chemical composition of the substance. Similarly, changes of temperature are also physical changes as they only affect the physical properties of a substance, such as its state or volume, without causing any chemical reactions.Rate this question:
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- 6.
Classify as an intensive property of matter
- A.
Density
- B.
Boiling Point
- C.
Color
- D.
The mass of a substance
Correct Answer(s)
A. Density
B. Boiling Point
D. The mass of a substanceExplanation
The given options can be classified as intensive properties of matter because they do not depend on the amount or size of the substance. Density is the mass per unit volume, which remains constant regardless of the amount of the substance. Boiling point is the temperature at which a substance changes from a liquid to a gas, and it is a characteristic property of the substance. The mass of a substance is also an intensive property as it remains the same regardless of the amount of the substance.Rate this question:
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- 7.
Check as an extensive property of matter
- A.
Density
- B.
The volume of a Mug
- C.
The number of calories when you consume 10 g of sugar
- D.
Your T shirt size
Correct Answer(s)
B. The volume of a Mug
D. Your T shirt sizeExplanation
The volume of a mug and your T-shirt size are examples of extensive properties of matter. Extensive properties are dependent on the amount or size of the substance being considered. In this case, the volume of a mug will vary depending on the size of the mug, and your T-shirt size will vary depending on your body size. These properties cannot be determined without considering the specific quantity or size of the matter being measured. On the other hand, density and the number of calories when consuming sugar are examples of intensive properties, which do not depend on the amount or size of the substance.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
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Dec 05, 2010Quiz Created by
Jkarbonos
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