Real life chemistry
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jakeThis document provides definitions and examples for various chemistry concepts. It defines matter as anything that has mass and volume, and gives a cell phone as an example. Not matter is defined as things without mass or volume, such as music. Pure substances consist of only one type of particle, like aluminum foil. Elements cannot be separated further, like gold. Compounds are composed of two or more elements with constant composition, such as table salt. Mixtures contain substances not chemically combined, such as Coke. Physical changes alter form or state but not substance, while chemical changes produce new substances, like paper ashes or popcorn.
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This document defines key chemistry concepts including matter, elements, compounds, mixtures, physical and chemical changes. It provides examples for each term to illustrate the definitions. Specifically, it defines matter as anything with mass and volume, elements as pure substances made of one type of particle, and compounds as pure substances made of two or more elements that form one type of particle. It also distinguishes between physical changes that change a substance's form but not its composition, versus chemical changes that alter a substance's properties by changing its components.
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Matter can be classified according to its state and composition. There are three main states of matter - solids, liquids, and gases. Solids have a definite shape and volume, liquids have a definite volume but not shape, and gases fill their container. Matter can also be classified as pure substances or mixtures. Pure substances are either elements or compounds, while mixtures contain two or more components that can vary in proportions. The document then discusses the characteristics of solids, liquids, and gases as well as properties of matter such as density, hardness, and transparency.
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4) Physical changes alter the shape, size or state of matter without forming new substances whereas chemical changes produce new substances.
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The document discusses different types of properties of matter including physical, chemical, and biological properties. It defines physical properties as those that can be observed without changing the identity of the substance such as mass, volume, density, state, color, odor, and hardness. Chemical properties describe a substance's ability to change into a new substance with different properties through chemical reactions. Biological properties distinguish living from nonliving things.
matter ppt excellent.ppt
This document provides an overview of introductory chemistry concepts. It begins by defining chemistry and its major areas of study. It then defines matter and classifies pure substances as elements or compounds. Elements are substances that cannot be broken down further, while compounds are formed by combining two or more elements. Mixtures are combinations of pure substances that can be either heterogeneous or homogeneous. The document also discusses physical and chemical properties of matter and how to distinguish between physical and chemical changes. It introduces the five states of matter and uses kinetic theory to explain the behavior of gases, liquids, and solids. Key concepts covered include phase changes, pressure, and gas laws like Boyle's, Charles', and the combined gas law.
Chm phypp ch. 2-3
This document provides an introduction to chemistry, including defining chemistry and matter. It discusses classifying pure substances as elements or compounds and distinguishing pure substances from mixtures. Key topics covered include the five states of matter (solid, liquid, gas, plasma, Bose-Einstein condensate), kinetic theory, and gas laws including Boyle's law, Charles' law, and the combined gas law. Examples are provided to illustrate concepts such as physical and chemical properties, physical and chemical changes, phase changes, and factors that affect gas pressure.
Describing matter powerpoint
Matter can exist in three states - solid, liquid, and gas. Examples of solids are ice and diamonds; examples of liquids are water and mercury. Gases include water vapor and oxygen. Characteristic properties like boiling point and melting point are used to identify substances and do not change, even if the substance changes state. Physical changes alter the substance's form through processes like melting or crushing, but do not change its chemical makeup. Chemical changes form new substances through chemical reactions.
Physical and chemical property final
There are three main states of matter: solid, liquid, and gas. The temperature at which a solid melts into a liquid is called the melting point, while the temperature at which a liquid boils and turns into a gas is called the boiling point. Water's melting point is 0 degrees Celsius and its boiling point is 100 degrees Celsius. Matter has physical properties like density, volume, and viscosity that can be observed without changing its chemical makeup, as well as chemical properties involving chemical changes and reactions with other substances.
Matter
The document discusses the properties of matter. It defines matter as anything that has volume and mass. Volume is the amount of space an object occupies, while mass is the amount of matter it contains. The key differences between mass and weight are explained - mass is a measure of the amount of matter and stays constant, while weight varies depending on location as it is the measure of gravitational force on an object. Physical properties can be observed without changing the substance, while chemical properties describe its ability to change into new substances.
Chemistry - Chapter 2 matter and change
This document provides an overview of key concepts about matter and chemical changes from a chemistry textbook. It defines matter and its three main states (solid, liquid, gas). It describes properties as either extensive (depending on amount) or intensive (depending on type). It differentiates between physical and chemical changes, elements and compounds, and mixtures and pure substances. It outlines clues that indicate a chemical change has occurred and introduces the law of conservation of mass.
041316 propertiesofmatter 12 chp2_2
Physical properties describe characteristics of matter that can be observed or measured without changing the identity of the substance. Some key physical properties discussed are volume, which is the amount of space an object occupies, and density, which is the mass per unit volume. Changes in physical properties, such as changes in size, shape, or state, are physical changes and do not alter the fundamental identity of the substance. Chemical changes result in a new substance forming.
Chemistry - Chapter 2 matter and change
This document provides an overview of chapter 2 which covers properties of matter, states of matter, mixtures, elements and compounds, and chemical reactions. It defines key terms including physical and chemical properties, extensive and intensive properties, elements, compounds, mixtures, homogeneous and heterogeneous mixtures, physical and chemical changes, reactants and products. It also outlines the key objectives covered in each section and provides examples to illustrate important concepts such as the three states of matter, separating mixtures, symbols and formulas of elements, and the law of conservation of mass.
Matter
The document discusses matter and its properties. It defines matter as anything that has mass and takes up space. There are three main states of matter: solids, liquids, and gases. Solids have a definite shape and volume, liquids have a definite volume but not shape, and gases have neither a definite shape or volume. Matter can change states through processes like melting, freezing, boiling, condensation, and sublimation in response to changes in temperature or pressure. Physical changes alter the properties of matter without changing its composition, while chemical changes produce new substances. The document provides examples to illustrate the key concepts.
Cycle 3 (describing matter) powerpoint
This document provides information about describing matter, including defining matter and its key properties. It discusses the three states of matter (solid, liquid, gas), physical and chemical properties, and physical and chemical changes. Physical changes alter a substance's physical properties but not its chemical identity, while chemical changes form new substances. The document also covers factors that affect phase changes between different states of matter like temperature, pressure, and other variables.
Chapter 2 matter and change
This chapter discusses the fundamental concepts of matter and chemical changes. It defines matter as anything that has mass and takes up space, and describes its three main states as solid, liquid, and gas. Properties of matter are classified as either intensive or extensive. Physical and chemical properties are distinguished. Mixtures and compounds are introduced, where mixtures maintain the properties of the individual components and compounds exhibit new properties. Elements are defined as pure substances made of only one type of atom that cannot be broken down further by chemical means. Chemical changes, in which the reactants are converted into products with different compositions, are described along with clues that indicate a chemical change has occurred. The law of conservation of mass, whereby the mass of the reactants equals the mass
Les 1.1 sci5
Properties describe the characteristics of matter and can be either extensive or intensive. Extensive properties depend on amount and can be measured by tools like rulers, volumetric flasks, and balances, while intensive properties do not depend on amount and include density and color. Chemical properties can only be measured by changing a substance's identity or forming new substances, and include examples like reactivity, flammability, and pH.
Matter
Matter can exist in different states and undergo physical or chemical changes. Physical changes alter a substance's state without changing its chemical makeup, while chemical changes form new substances. Properties like density and melting point can be used to identify pure substances and distinguish them from mixtures of multiple components.
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