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Questions and Answers
Luster is an example of a size-independent physical property of matter.
Luster is an example of a size-independent physical property of matter.
False
The melting point of a substance is a size-dependent property.
The melting point of a substance is a size-dependent property.
False
Flammability is a chemical property that can be observed without changing the substance permanently.
Flammability is a chemical property that can be observed without changing the substance permanently.
False
A chemical change produces new substances with properties different from those of the original substance.
A chemical change produces new substances with properties different from those of the original substance.
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The boiling point of water is an example of a chemical property.
The boiling point of water is an example of a chemical property.
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Viscosity refers to the resistance of a liquid to flow and is a size-independent property.
Viscosity refers to the resistance of a liquid to flow and is a size-independent property.
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Chemical changes are typically reversible processes.
Chemical changes are typically reversible processes.
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Density is defined as the amount of mass per unit of volume of a substance.
Density is defined as the amount of mass per unit of volume of a substance.
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Study Notes
Physical and Chemical Properties
- Matter: Anything that has mass and takes up space
- Properties: Characteristics used to describe matter
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Physical Properties: Characteristics that can be observed or measured without changing the substance's identity
- Size-dependent: Depend on the amount of matter in a sample; examples include mass, weight, and volume
- Size-independent: Do not depend on the amount of matter in a sample; examples include state of matter (solid, liquid, gas), luster, color, texture, melting point, boiling point, solubility, conductivity, density, magnetism, hardness, and malleability
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Chemical Properties: Characteristics that describe how a substance changes into a new substance
- Examples include flammability, reactivity with oxygen, reactivity with sulfur, acidity/basicity
Chemical Change vs. Physical Change
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Physical Change: A change in a substance's form or appearance, but it's still the same substance. Can be reversed.
- Examples: melting ice, dissolving sugar, tearing fabric, breaking glass
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Chemical Change: A change that results in a new substance with different properties. Cannot be reversed easily.
- Examples: burning wood, rusting of iron, baking a cake, digesting food, and a rotting egg
- Evidence of a Chemical Change: Color change, gas production (bubbles, fizzing, smoke), odor change, change in energy (light, heat, sound), formation of a precipitate (solid formed from a liquid mixture)
Examples of Properties
- Luster: The shine or glow of a substance
- Color: The appearance of a substance, such as blue, red, or green.
- Texture: The feel of a surface, like smooth or rough
- Mass: The amount of matter in an object
- Weight: The force of gravity acting on an object's mass
- Volume: The amount of space an object occupies
- State of Matter: Solid, Liquid, or gas
- Melting Point: The temperature at which a substance changes from solid to liquid
- Boiling Point: The temperature at which a substance changes from liquid to gas
- Solubility: The ability of a substance to dissolve in another substance
- Conductivity: The ability of a substance to conduct electricity or heat
- Density: The mass per unit volume of a substance
- Hardness: Resistance to being scratched by another object
- Malleability: Ability to be hammered or shaped into thin sheets without breaking
- Flammability: The ability to burn
- Reactivity with oxygen: The ability to combine with oxygen
- Reactivity with sulfur: The ability to combine with sulfur
- Acidity/Basicity: The measure of the hydrogen ions (H+) or hydroxide ions (OH−) in a solution.
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Description
Test your understanding of the physical and chemical properties of matter. This quiz covers key concepts including size-dependent and size-independent properties, as well as distinguishing between physical and chemical changes. Challenge yourself to identify and apply these principles to various examples.
