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This document discusses various chemistry concepts including: 1. Distillation and evaporation, which are processes that separate substances based on their boiling points. 2. Evidence of chemical reactions such as changes in color, formation of gases or precipitates, and changes in temperature. 3. The classifications of matter as pure substances or mixtures, and the different types of mixtures and their properties.
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Keynote!!
This document defines and describes various chemistry concepts including:
1. Distillation is a process that separates substances in a solution based on their boiling points. Evaporation is the process where a liquid becomes a gas.
2. Evidence of a chemical reaction includes a change in color, formation of a gas, or formation of a precipitate.
3. Mixtures contain two or more substances that are not chemically combined and can be separated by physical means, while elements and compounds have fixed compositions.
Science party
There are currently 118 known elements that make up all matter. Elements are pure substances that contain only one type of atom, while compounds are made of two or more elements or other compounds. Mixtures have a variable composition because their ingredients are not uniformly distributed.
Science Slideshow
This document provides an overview of key chemistry concepts related to classifying and identifying matter. It defines pure substances, elements, compounds, mixtures and their subcategories. Physical properties like viscosity, conductivity and melting point are described, as well as common separation techniques like filtration and distillation. Chemical properties like reactivity and flammability are also covered. Key differences between physical and chemical changes are outlined. The document concludes with review questions to test understanding of these fundamental chemistry concepts.
Text slideshow
This document defines key chemistry concepts such as elements, compounds, mixtures, and the different types of mixtures. It discusses homogeneous mixtures like solutions, and heterogeneous mixtures like colloids. It also covers physical properties including viscosity, conductivity, malleability, melting and boiling points. Finally, it discusses processes such as filtration, distillation, evaporation, and the differences between chemical and physical changes.
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This document discusses physical and chemical properties of matter. Physical properties can be observed or measured without changing the identity of the substance, such as boiling point, melting point, color, odor, and hardness. Physical changes alter the physical form of matter without changing its chemical makeup, like boiling, freezing, or bending. Chemical properties describe a substance's ability to undergo chemical reactions, like flammability or reactivity. Chemical changes result in one or more new substances forming, indicated by signs like color changes, gas production, or precipitation. The key difference is that physical changes do not alter the composition of matter, while chemical changes do.
Chapter two powerpoint
The document summarizes key concepts about matter, including:
- Pure substances are classified as either elements or compounds.
- Elements contain only one type of atom, while compounds are made of two or more simpler substances.
- Mixtures can be heterogeneous or homogeneous based on how evenly distributed their parts are.
- Physical properties describe observable characteristics without changing a substance's composition.
- Chemical properties involve changes in composition through chemical reactions.
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This document discusses the physical and chemical properties of matter. It defines matter as anything that has mass and takes up space. Physical properties can be observed without changing the material and include characteristics like color, hardness, and melting point. Chemical properties involve a change in the material's composition through reactions with other substances, such as rusting or burning. Some examples provided assess whether various phenomena are physical or chemical properties.
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This document is a chapter summary about classifying and identifying the properties of matter. It discusses that matter can be classified as pure substances, which are either elements or compounds, or as mixtures, which can be homogeneous or heterogeneous. Mixtures are further classified as solutions, suspensions, or colloids based on particle size. The chapter also describes various physical properties that are used to identify materials, such as viscosity, conductivity, density, and melting and boiling points. It explains how physical properties are used to separate mixtures using filtration and distillation methods. Finally, it defines chemical properties and chemical changes, noting evidence like color change, gas production, and precipitate formation.
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Keynote!!
This document defines and describes various chemistry concepts including:
1. Distillation is a process that separates substances in a solution based on their boiling points. Evaporation is the process where a liquid becomes a gas.
2. Evidence of a chemical reaction includes a change in color, formation of a gas, or formation of a precipitate.
3. Mixtures contain two or more substances that are not chemically combined and can be separated by physical means, while elements and compounds have fixed compositions.
Science party
There are currently 118 known elements that make up all matter. Elements are pure substances that contain only one type of atom, while compounds are made of two or more elements or other compounds. Mixtures have a variable composition because their ingredients are not uniformly distributed.
Science Slideshow
This document provides an overview of key chemistry concepts related to classifying and identifying matter. It defines pure substances, elements, compounds, mixtures and their subcategories. Physical properties like viscosity, conductivity and melting point are described, as well as common separation techniques like filtration and distillation. Chemical properties like reactivity and flammability are also covered. Key differences between physical and chemical changes are outlined. The document concludes with review questions to test understanding of these fundamental chemistry concepts.
Text slideshow
This document defines key chemistry concepts such as elements, compounds, mixtures, and the different types of mixtures. It discusses homogeneous mixtures like solutions, and heterogeneous mixtures like colloids. It also covers physical properties including viscosity, conductivity, malleability, melting and boiling points. Finally, it discusses processes such as filtration, distillation, evaporation, and the differences between chemical and physical changes.
Chap 2 chem & phy properties
This document discusses physical and chemical properties of matter. Physical properties can be observed or measured without changing the identity of the substance, such as boiling point, melting point, color, odor, and hardness. Physical changes alter the physical form of matter without changing its chemical makeup, like boiling, freezing, or bending. Chemical properties describe a substance's ability to undergo chemical reactions, like flammability or reactivity. Chemical changes result in one or more new substances forming, indicated by signs like color changes, gas production, or precipitation. The key difference is that physical changes do not alter the composition of matter, while chemical changes do.
Chapter two powerpoint
The document summarizes key concepts about matter, including:
- Pure substances are classified as either elements or compounds.
- Elements contain only one type of atom, while compounds are made of two or more simpler substances.
- Mixtures can be heterogeneous or homogeneous based on how evenly distributed their parts are.
- Physical properties describe observable characteristics without changing a substance's composition.
- Chemical properties involve changes in composition through chemical reactions.
Physical & chemical properties
This document discusses the physical and chemical properties of matter. It defines matter as anything that has mass and takes up space. Physical properties can be observed without changing the material and include characteristics like color, hardness, and melting point. Chemical properties involve a change in the material's composition through reactions with other substances, such as rusting or burning. Some examples provided assess whether various phenomena are physical or chemical properties.
Science ch. 2 pp
This document is a chapter summary about classifying and identifying the properties of matter. It discusses that matter can be classified as pure substances, which are either elements or compounds, or as mixtures, which can be homogeneous or heterogeneous. Mixtures are further classified as solutions, suspensions, or colloids based on particle size. The chapter also describes various physical properties that are used to identify materials, such as viscosity, conductivity, density, and melting and boiling points. It explains how physical properties are used to separate mixtures using filtration and distillation methods. Finally, it defines chemical properties and chemical changes, noting evidence like color change, gas production, and precipitate formation.
Chapter 2 notes
The document discusses different types of mixtures and substances including elements, compounds, homogeneous and heterogeneous mixtures, and solutions. It also covers various separation techniques like distillation, filtration, evaporation, and provides examples of each. Finally, it reviews chemical and physical properties and gives examples of evidence of chemical changes.
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This document discusses various physical properties of materials including:
1) Conductivity, density, viscosity, malleability, hardness, odor, melting point, boiling point, filtration, and distillation are discussed as physical properties.
2) Physical changes alter some properties but do not change the substances. Examples given are evaporation and flammability.
3) Chemical changes form new substances with evidence including changes in color, production of gas, formation of precipitates, and temperature changes.
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This document discusses the physical and chemical properties of matter. It explains that matter exists in three states - solid, liquid, and gas - and can be elements, mixtures, or compounds. It then lists and describes various physical properties including melting, expansion, vaporization, conductivity, and density. The document also covers chemical properties such as flammability, reactions with other substances, pH levels, and oxidation/reduction. Finally, it questions the connections between chemistry and climate change.
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This document describes properties of matter. It discusses physical properties like density, state of matter, thermal conductivity, malleability, ductility, and solubility. These can be observed without changing the identity of the substance. It also discusses chemical properties like combustibility and reactivity that involve changes in the substance. Physical changes alter properties but don't make new substances, while chemical changes form entirely new substances. Signs of chemical changes include odor/color changes, temperature changes, bubble or precipitate formation.
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This document discusses the differences between physical and chemical properties of matter. Physical properties can be observed or measured without changing the identity of the substance, such as boiling point, density, state, and color. Physical changes alter the substance's form but not its composition, like melting, freezing, or bending. Chemical properties describe a substance's ability to undergo chemical reactions, for example flammability or reactivity. Chemical changes result in one or more new substances forming through chemical reactions. The identity of the original substance is changed in a chemical change.
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This document discusses chemical reactions and how to identify when one occurs. It defines key terms like matter, physical and chemical properties, and physical and chemical changes. It explains that a chemical reaction involves bonds breaking and forming, resulting in new substances. Signs that a chemical reaction has taken place include the formation of precipitates and changes in temperature, as reactions can be endothermic (absorb energy) or exothermic (release energy).
Chap 2 chem & phy properties
Physical properties can be observed and measured without changing a substance's identity, and are used to identify substances. Examples of physical properties include boiling point, freezing point, melting point, conductivity, flexibility, color, and odor. Physical changes alter a substance's form but not its chemical properties, such as boiling, freezing, melting, bending, and dissolving. Chemical properties describe a substance's ability to undergo chemical reactions, like flammability and reactivity. Chemical changes produce new substances with different properties.
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The document defines key chemistry concepts such as elements, compounds, mixtures, solutions, suspensions, colloids, and separation techniques including distillation, evaporation, and filtration. It also discusses chemical changes and provides examples such as changes in color, temperature, production of gas, or formation of precipitate. Physical and chemical changes are compared. Reactivity and flammability are also addressed. Review questions are included to test understanding.
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This document discusses matter and its properties. It defines matter as either pure substances or mixtures. Pure substances are either elements or compounds, while mixtures can be homogeneous or heterogeneous. The document then discusses several physical properties of matter like viscosity, conductivity, malleability, hardness, density, melting point, and boiling point. It explains processes like distillation, filtration, evaporation, and electrolysis that are used to separate mixtures based on these physical properties. The review questions ask about examples of physical changes, classifying mixtures, why mixtures vary, and separation processes.
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This document defines and provides examples of mixtures, solutions, suspensions, colloids, and gas mixtures. It explains that mixtures can be separated physically but their compositions are not fixed, while solutions appear homogeneous but are mixtures that dissolve. Suspensions and colloids are mixtures where particles settle or scatter light differently. The document also defines elements as pure substances that cannot be broken down, and compounds as pure substances formed by chemical combination of elements in specific ratios producing new properties.
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This document discusses physical and chemical properties of matter. It defines physical properties as those that can be observed without changing the identity of the substance, such as color, shape, and size. Chemical properties involve changes in which new substances are formed, such as flammability and reactivity. Examples of physical changes provided are melting, freezing, and breaking, which do not form new substances. Chemical changes, like burning and digestion, result in different final products. The document also discusses density, states of matter, and distinguishing between physical and chemical changes.
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The document discusses the different states of matter - solids, liquids, gases and plasma. It explains the properties of each state, including that solids have a fixed shape and volume, liquids can change shape but not volume, gases expand to fill their container, and plasma is a hot ionized gas that conducts electricity. It also covers gas laws like Boyle's Law and Charles' Law, and changes of state that occur through processes like melting, boiling, evaporation and condensation.
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The document discusses properties of matter. It defines properties as characteristics and behaviors used to describe matter. There are two main types of properties: physical properties which can be observed without changing the substance, and chemical properties which describe a substance's ability to change into another. Matter can exist as pure substances or mixtures, and can be broken down into molecules, compounds, and atoms.
Characteristic properties
This document discusses key concepts about matter including:
- Physical properties of matter like density, viscosity, conductivity, malleability, hardness, and odor.
- The differences between pure substances (elements and compounds) and mixtures, and how mixtures can be either homogeneous or heterogeneous.
- Characteristics of chemical changes including changes in color, production of gas, and formation of precipitates.
- Key terms like element, compound, colloid, and chemical/physical changes.
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This document provides an overview of properties of matter. It begins by defining the three states of matter - solids, liquids, and gases. It describes the properties of each state, such as solids having a fixed shape and volume while gases have no fixed shape or volume. The document then discusses physical and chemical properties and changes, defining the difference between physical and chemical changes. It provides examples of each. Density is also covered, defining concepts such as mass, volume, and density and providing practice problems. The document concludes by discussing elements, compounds, and mixtures.
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This document discusses the classification of matter according to origin, state, and composition. It defines matter as anything that occupies space and has mass. Matter is classified as elements, compounds, and mixtures. Elements are composed of single atoms and cannot be broken down further. Compounds have a fixed composition and unique properties. Mixtures can be either homogeneous, with components mixed at molecular scale, or heterogeneous, with distinguishable components. The document provides examples for different types of matter and emphasizes the importance of understanding matter.
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This document describes properties of matter. It discusses physical properties like density, state of matter, thermal conductivity, malleability, ductility, and solubility. These can be observed without changing the identity of the substance. It also discusses chemical properties like combustibility and reactivity that involve changes in the substance. Physical changes alter properties but don't make new substances, while chemical changes form entirely new substances. Signs of chemical changes include odor/color changes, temperature changes, bubble or precipitate formation.
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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
Science ch.2 powerpoint
This document discusses pure substances like elements and compounds, as well as mixtures. It defines heterogeneous and homogeneous mixtures. It also describes several processes used to separate substances, including filtration, evaporation, and distillation. Key signs of a chemical change are listed as a change in color, production of a gas, or formation of a precipitate. [/SUMMARY]
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.
Basics of Matter.ppt
This document discusses physical and chemical changes, pure substances, mixtures, and states of matter. It defines physical changes as changes in a substance's state or form without changing its chemical composition, and chemical changes as the formation of new substances through chemical reactions. Mixtures are combinations of substances that are not chemically bonded and can be separated by physical means. The four common states of matter are solids, liquids, gases, and plasma, which differ in the arrangement and movement of their particles according to the kinetic molecular theory.
Chemistry review
Matter and energy are the fundamental building blocks of chemistry. The periodic table organizes elements based on atomic structure and properties to help understand relationships between different types of matter. Physical changes alter a substance's state without changing its chemical makeup, while chemical changes form new substances through atomic rearrangements. Scientific models are used to represent unobservable phenomena and further our understanding of how matter behaves.
classification-of-matter.pptx
This document discusses the classification and separation of matter. It defines pure substances as elements or compounds that have a uniform composition and cannot be separated into simpler substances. Mixtures are physical combinations of pure substances that retain their identities and can be separated. Homogeneous mixtures are uniform throughout while heterogeneous mixtures have distinct phases. Common separation techniques for mixtures include filtration, evaporation, and distillation.
Matter
The document discusses the different states and properties of matter. It defines matter as anything that has mass and occupies space, and identifies the three normal states as solid, liquid, and gas. At extremely high or low temperatures, plasma and Bose-Einstein condensate exist as the 4th and 5th states. Matter has physical properties like mass, volume, and extensive/intensive properties, as well as chemical properties regarding its composition and ability to undergo chemical reactions. Physical changes alter the state of matter without changing composition, while chemical changes result in new substances through reactions. Examples of corrosion show unwanted oxidation of metals.
Introduction
Chemistry is the study of matter and its composition, properties, and the changes it undergoes. There are several key points:
1) Matter is anything that has mass and takes up space, and can be either a pure substance or a mixture.
2) Chemical and physical properties are used to identify substances. Chemical properties involve changes in composition while physical properties do not.
3) Energy drives all chemical and physical changes. It is transferred and transformed during reactions but cannot be created or destroyed. Exothermic reactions release energy while endothermic reactions absorb energy.
Properties and Structure of Matter.pdf
The document discusses the key concepts around the properties and structure of matter. It defines matter as anything that has mass and takes up space. Matter exists in three physical states - solid, liquid, and gas - which are determined by factors like particle arrangement, energy, and distance between particles. Properties of matter include physical properties, which can be observed without changing the substance's identity or composition, and chemical properties, which involve changes in composition during a chemical reaction. Mixtures, elements, and compounds are the main classifications of matter. Various techniques can be used to separate mixtures based on the phases and properties of their components, such as filtration, evaporation, distillation, and chromatography.
Similar to Powerpoint for sceince (20)
Powerpoint for sceince
- 1. Chapter 2.1 and 2.2 By: Emma Cohen
- 2. Distillation • A process that separates substances in a solution by their boiling points.
- 3. Evaporation • The process in which a liquid becomes a gas. • A process used to isolate a solid dissolved in a liquid property: solubility
- 4. Evidence of a Chemical Reaction • A change in color • The formation of a gas • A formation of a precipitate • A change in the temperature
- 5. Flammability • materials that burn and can be used as fuel.
- 6. How to classify matter Matter pure substance mixture homogenous heterogenous Element Compound mixture mixture
- 7. Mixtures • Two or more substances that are not chemically combined with each other and be separated by Physical means. The substances in a mixture retain their characteristic properties.
- 8. Elements • The simplest form of pure substances. • A element has a fixed composition because it contains only one type of atom
- 9. Physical Properties • Viscosity • Conductivity • Malleability • Hardness • Melting Point • Boiling Point • Density
- 10. Compound • Two or more elements that are chemically combined. In a fixed proportion.
- 11. Colloid • A mixture that is uniform throughout.
- 12. Distillation • A process that seperates the substances in a slution based on boiling points.
- 13. Filtration • A process that separates materials based on the size of their particles and or solubility
- 14. Physical v. Chemical Change • Physical change does not have any change in composition. • Chemical change does have a change in the composition.
- 15. Reactivity of Hydrogen and Oxygen • Hydrogen is explosive, and the density of it is less so the air rises. • Oxygen will ignite an embruing flame, and the density is greater so the air sinks.
- 16. • Test Questions!!!!!
- 17. • What is the difference between a physical change and a chemical change?
- 18. • How can you tell if it is a chemical change?
- 19. • How would you test for a physical property?
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