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Questions and Answers
What is the definition of matter?
What is the definition of matter?
What is the physical property of matter that refers to the amount of space occupied by an object?
What is the physical property of matter that refers to the amount of space occupied by an object?
What type of matter is made up of two or more different elements?
What type of matter is made up of two or more different elements?
What is the state of matter in which particles are closely packed and have a fixed position?
What is the state of matter in which particles are closely packed and have a fixed position?
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What is the process of changing from a liquid to a gas?
What is the process of changing from a liquid to a gas?
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What is the chemical property of matter that refers to the ability of an object to undergo chemical changes?
What is the chemical property of matter that refers to the ability of an object to undergo chemical changes?
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Study Notes
Definition of Matter
- Matter is anything that has mass and occupies space.
- It is the physical substance that makes up all objects, living and non-living.
Properties of Matter
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Physical Properties:
- Mass: the amount of matter in an object
- Volume: the amount of space occupied by an object
- Density: the mass of an object per unit volume
- State: solid, liquid, or gas
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Chemical Properties:
- Reactivity: the ability of an object to undergo chemical changes
- Composition: the type and amount of substances that make up an object
Types of Matter
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Elements: substances made up of only one type of atom
- Examples: hydrogen (H), oxygen (O), carbon (C)
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Compounds: substances made up of two or more different elements
- Examples: water (H2O), carbon dioxide (CO2)
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Mixtures: combinations of two or more substances that are not chemically combined
- Examples: air (oxygen, nitrogen, etc.), soil (sand, clay, etc.)
States of Matter
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Solids:
- Have a fixed shape and volume
- Particles are closely packed and have a fixed position
-
Liquids:
- Take the shape of their container
- Particles are close together but can move past each other
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Gases:
- Take the shape and volume of their container
- Particles are widely spaced and can move freely
Changes of State
- Melting: the change from a solid to a liquid
- Freezing: the change from a liquid to a solid
- Evaporation: the change from a liquid to a gas
- Condensation: the change from a gas to a liquid
Definition of Matter
- Matter is anything that has mass and occupies space and is the physical substance that makes up all objects, living and non-living.
Properties of Matter
- Mass is the amount of matter in an object.
- Volume is the amount of space occupied by an object.
- Density is the mass of an object per unit volume.
- State refers to whether an object is solid, liquid, or gas.
- Reactivity is the ability of an object to undergo chemical changes.
- Composition refers to the type and amount of substances that make up an object.
Types of Matter
- Elements are substances made up of only one type of atom, for example, hydrogen (H), oxygen (O), and carbon (C).
- Compounds are substances made up of two or more different elements, for example, water (H2O) and carbon dioxide (CO2).
- Mixtures are combinations of two or more substances that are not chemically combined, for example, air (oxygen, nitrogen, etc.) and soil (sand, clay, etc.).
States of Matter
- Solids have a fixed shape and volume, and their particles are closely packed and have a fixed position.
- Liquids take the shape of their container, and their particles are close together but can move past each other.
- Gases take the shape and volume of their container, and their particles are widely spaced and can move freely.
Changes of State
- Melting is the change from a solid to a liquid.
- Freezing is the change from a liquid to a solid.
- Evaporation is the change from a liquid to a gas.
- Condensation is the change from a gas to a liquid.
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Description
Test your understanding of matter and its properties, including physical and chemical properties, mass, volume, density, and state.