States of Matter - cbafaculty.org

States of Matter - cbafaculty.org

3.2 States and Properties of Matter The evaporation of water from seawater gives white, solid crystals of salt called sodium chloride. Learning Goal Identify the states and the physical and chemical properties of matter. General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc. Solids

Solids have a definite shape. a definite volume. particles that are close together in a fixed arrangement. particles that move very slowly. A solid has a definite shape and volume. General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake Amethyst, a solid, is a purple form of quartz (SiO2).

2016 Pearson Education, Inc. Liquids Liquids have an indefinite shape but a definite volume. the same shape as their container. particles that are close together but mobile. particles that move slowly. A liquid has a definite volume but takes the shape of its container. General, Organic, and Biological Chemistry: Structures of Life, 5/e

Karen C. Timberlake 2016 Pearson Education, Inc. Gases Gases have an indefinite shape. an indefinite volume. the same shape and volume as their container. particles that are far apart. particles that move very fast. A gas takes the shape and

volume of its container. General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc. Comparison of Solids, Liquids, and Gases General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc. Study Check Identify each description as that of a solid, liquid, or gas. A. It has definite volume but takes the shape of the

container. B. Its particles are moving rapidly. C. Its particles fill the entire volume of a container. D. Its particles have a fixed arrangement. E. Its particles are close together but moving randomly. General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc. Solution Identify each description as that of a solid, liquid, or gas. A. It has definite volume but takes the shape of the container. liquid

B. Its particles are moving rapidly. gas C. Its particles fill the entire volume of a container. gas D. Its particles have a fixed arrangement. solid E. Its particles are close together but moving randomly. liquid General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc. Study Check Identify the state of matter for each of the following: A.

B. C. D. E. vitamin tablets eye drops vegetable oil a candle air in a tire General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc.

Solution Identify the state of matter for each of the following: A. B. C. D. E. vitamin tablets eye drops vegetable oil a candle air in a tire General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake

solid liquid liquid solid gas 2016 Pearson Education, Inc. Physical Properties Physical properties are characteristics observed or measured without changing the identity of a substance. include shape, physical state, boiling and freezing points, density, and color of the substance.

Core Chemistry Skill Identifying Physical and Chemical Changes General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc. Physical Properties of Copper Copper has these physical properties: reddish-orange color shiny excellent conductor of heat and electricity solid at 25 C melting point 1083 C

boiling point 2567 C Copper, used in cookware, is a good conductor of heat. General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc. Physical Change A physical change occurs in a substance if there is a change in the state. a change in the physical shape. no change in the identity and composition of the

substance. The evaporation of water from seawater gives white, solid crystals of salt called sodium chloride. General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc. Examples of Physical Changes General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc.

Study Check Classify each of the following as a change of state or change of shape: A. chopping a log into kindling wood B. water boiling in a pot C. ice cream melting D. ice forming in a freezer E. cutting dough into strips General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc. Solution

Classify each of the following as a change of state or change of shape: A. chopping a log into kindling change of shape B. water boiling in a pot change of state C. ice cream melting change of state D. ice forming in a freezer change of state E. cutting dough into strips change of shape General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake

2016 Pearson Education, Inc. Chemical Properties and Changes Chemical properties describe the ability of a substance to interact with other substances. to change into a new substance. When a chemical change takes place, the original substance is turned into one or more new substances with new chemical and physical properties. General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc.

Chemical Change During a chemical change, a new substance forms that has a new composition. new chemical properties. new physical properties. Sugar caramelizing at a high temperature is an example of a chemical change. Flan has a topping of caramelized sugar. General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc.

Examples of Chemical Changes General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc. Study Check Classify each of the following properties as physical or chemical: A. Ice melts in the sun. B. Copper is a shiny metal. C. Paper can burn. D. A silver knife can tarnish. E. A magnet removes iron particles from a mixture.

General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc. Solution Classify each of the following properties as physical or chemical: A. Ice melts in the sun. physical B. Copper is a shiny metal. physical C. Paper can burn. chemical D. A silver knife can tarnish. chemical E. A magnet removes iron particles from a mixture.

physical General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc. Study Check Classify each of the following changes as physical or chemical: A. burning a candle B. ice melting on the street C. toasting a marshmallow D. cutting a pizza E. iron rusting in an old car

General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake 2016 Pearson Education, Inc. Solution Classify each of the following changes as physical or chemical: A. burning a candle chemical B. ice melting on the street physical

C. toasting a marshmallow chemical D. cutting a pizza E. iron rusting in an old car General, Organic, and Biological Chemistry: Structures of Life, 5/e Karen C. Timberlake physical chemical 2016 Pearson Education, Inc.

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