Characteristic properties of_matter
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The document discusses the characteristic properties of matter. It states that matter has physical properties like color, odor, and melting point that can be observed without chemical changes. It also has chemical properties like acidity and reactivity that involve chemical changes. The characteristic properties do not depend on amount or shape of the matter. Some factors like heat, pressure, and nuclear processes can change the properties.
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Properties-of-Matter.pptx Physical Science
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Ch1.12.matter measurement ppt
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Chemistry Unit 2 Part 1
This document discusses different types of properties and changes in matter. It defines extensive and intensive properties, with examples like mass and density. Physical properties can be observed without changing a substance's identity, while chemical properties involve changes in a substance's composition or structure. Physical changes alter a substance's state or form without changing its chemical makeup, like phase changes between solid, liquid and gas. Chemical changes form new substances through chemical reactions. All changes require a transfer of energy.
Matter and materials
1. The document discusses various properties of matter and how they are used to classify and identify different types of matter. It describes extensive properties that depend on amount and intensive properties that depend on type.
2. Mixtures and pure substances are introduced. Heterogeneous mixtures are non-uniform while homogeneous mixtures are uniform throughout. Elements have a unique set of properties while compounds contain two or more elements.
3. The three states of matter are defined as solid, liquid, and gas. Physical and chemical changes are distinguished based on whether the composition changes. Chemical symbols and formulas are used to represent elements and compounds in chemical reactions.
Made by aman
This document discusses key concepts in chemistry including:
- Chemistry is the study of matter which is anything that has mass and takes up space. All matter is made of atoms.
- Pure substances can be elements, which contain only one type of atom, or compounds, which contain two or more elements in a fixed ratio. Mixtures contain two or more substances mixed together.
- Properties describe characteristics of matter and can be physical, relating to a substance's observable properties, or chemical, relating to how it interacts with other substances.
- A chemical change forms new substances while a physical change only alters a substance's physical properties like state.
- Chemical tests can identify substances by their reactions and common tests are described
Matter powerpoint
The document discusses the different states of matter and how they are affected by the kinetic molecular theory. It explains that physical changes alter a substance's form or appearance but not its chemical composition, while chemical changes create an entirely new substance. The document also covers plasma as the fourth state of matter and its many applications in areas like manufacturing, medicine, communications, and waste processing.
Chap 2 chem & phy properties
Physical properties describe characteristics that can be observed or measured without changing the identity of a substance. Examples include boiling point, freezing point, state at room temperature, color, odor, and hardness. Physical changes alter the substance's physical form through processes like melting, freezing, boiling, but do not change its chemical identity. Chemical properties describe a substance's ability to undergo chemical reactions and change identity, like flammability or reactivity. Chemical changes result in new substances with different chemical compositions and properties.
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Characteristic properties of_matter
- 1. Characteristic Properties of Matter
- 2. Characteristic Properties of Matter— The Key Ideas Matter is anything that has mass and takes up space.
- 3. Characteristic Properties of Matter— The Key Ideas Matter has characteristic properties that can be divided into physical properties and chemical properties.
- 4. Characteristic Properties of Matter— The Key Ideas The physical properties of matter include color, odor, density, solubility, melting point, boiling point, and electrical conductivity. These are properties that can be observed without chemically changing the substance.
- 5. Characteristic Properties of Matter— The Key Ideas The characteristic chemical properties of matter include acidity, basicity, combustibility, and reactivity. In order to learn about the chemical properties of a substance, an attempt must be made to chemically change it.
- 6. Characteristic Properties of Matter— The Key Ideas Characteristic properties of matter do not depend on the amount of matter that makes up an object, or on the shape of the object.
- 7. Characteristic Properties of Matter— The Key Ideas Some factors that can change the characteristic properties of matter are heat, temperature, pressure, electromagnetic energy, and nuclear processes.
- 8. Characteristic Properties of Matter— • Size, volume, and mass are characteristic properties of matter. – Reality: The amount of matter in an object does not affect the characteristic properties of the object. • Shape is a characteristic property of matter. – Reality: An object will retain all of its characteristic properties regardless of its shape. For example, the water in a faucet and the water in a bucket are both clear and colorless, have a boiling point at 100ºC, can dissolve table salt, etc. Note, however, that the shape of crystals will follow the same pattern regardless of size, and this pattern is a chemical property.
- 9. Characteristic Properties of Matter— Common Misconceptions • Boiling and freezing are chemical changes. – Reality: Boiling and freezing are physical changes that make the molecules of a substance move faster or slower and be closer or farther apart. However, the molecules are not changed chemically. • Air and other gases are not a type of matter. – Reality: Gases are a type of matter because they have mass and take up weight. To have students experience how air takes up space, inflate a balloon or plastic bag and have students try to squeeze it.
- 10. Characteristic Properties of Matter— Resources Use the PowerPoint version of this presentation for hyperlinks to these resources, or you can get to them through the browser or search feature. • Video Segment: Characteristics of Matter • Video Segment: States and Properties of Matter • Reading Passage: Chemistry Capers • Reading Passage: What Is It? • Reading Passage: Understanding Physical Properties of Matter • Reading Passage: Chemical Properties of Matter