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Questions and Answers
What is the definition of matter?
What is the definition of matter?
What is the measure of the amount of matter in an object?
What is the measure of the amount of matter in an object?
What is the state of matter where particles are closely packed?
What is the state of matter where particles are closely packed?
What is the classification of a substance that consists of one type of atom?
What is the classification of a substance that consists of one type of atom?
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What is the process of a change from a solid to a liquid state?
What is the process of a change from a solid to a liquid state?
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What is the process of a change from a liquid to a solid state?
What is the process of a change from a liquid to a solid state?
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What is the process of a change from a liquid to a gas state?
What is the process of a change from a liquid to a gas state?
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What is the process of a change from a gas to a liquid state?
What is the process of a change from a gas to a liquid state?
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What is a process in which one or more substances are changed into new substances?
What is a process in which one or more substances are changed into new substances?
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What is the breaking down of a compound into simpler substances?
What is the breaking down of a compound into simpler substances?
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Study Notes
Definition of Matter
- Matter is anything that has mass and takes up space.
- It is the physical substance that makes up all objects, living and non-living.
Properties of Matter
- Mass: a measure of the amount of matter in an object, which remains constant regardless of its location.
- Volume: the amount of space occupied by an object.
- Density: the ratio of mass to volume of an object.
States of Matter
- Solid: a state of matter where particles are closely packed and have a fixed shape and volume.
- Liquid: a state of matter where particles are close together but are free to move past each other.
- Gas: a state of matter where particles are widely spaced and are free to move in any direction.
- Plasma: a high-energy state of matter where atoms are ionized and electrons are free to move.
Classification of Matter
- Elements: substances that consist of only one type of atom.
- Compounds: substances that consist of two or more different elements.
- Mixtures: physical combinations of two or more substances that are not chemically combined.
Physical Changes of Matter
- Melting: the change from a solid to a liquid state.
- Freezing: the change from a liquid to a solid state.
- Evaporation: the change from a liquid to a gas state.
- Condensation: the change from a gas to a liquid state.
Chemical Changes of Matter
- Chemical reaction: a process in which one or more substances are changed into new substances.
- Chemical bonding: the formation of chemical bonds between atoms to form compounds.
- Chemical decomposition: the breaking down of a compound into simpler substances.
Definition and Properties of Matter
- Matter is anything with mass and occupies space, making up all objects, living and non-living.
- Mass remains constant regardless of location, measuring the amount of matter in an object.
- Volume is the space occupied by an object, and density is the ratio of mass to volume.
States of Matter
- Solids have closely packed particles, fixed shape, and volume.
- Liquids have close particles that can move past each other, with a fixed volume but variable shape.
- Gases have widely spaced particles that can move freely, with variable shape and volume.
- Plasmas have ionized atoms and free-moving electrons.
Classification of Matter
- Elements consist of only one type of atom.
- Compounds consist of two or more different elements.
- Mixtures are physical combinations of two or more substances that are not chemically combined.
Physical Changes of Matter
- Melting changes a solid to a liquid state.
- Freezing changes a liquid to a solid state.
- Evaporation changes a liquid to a gas state.
- Condensation changes a gas to a liquid state.
Chemical Changes of Matter
- Chemical reactions involve the transformation of one or more substances into new substances.
- Chemical bonding forms compounds by forming chemical bonds between atoms.
- Chemical decomposition breaks down compounds into simpler substances.
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Description
Learn about the fundamental properties of matter, including mass, volume, and density, as well as the different states of matter such as solid, liquid, and gas.
