Elements, Compounds, & Mixtures Objectives:  1. Explain the difference between an element and a compound.  2. Compare heterogeneous and homogeneous mixtures.

Slides:

Advertisements

Similar presentations

Terms on phase changes:

Advertisements

Ways to separate mixtures – Chapter 3: Matter & Its Properties

August 31. How can you separate mixtures? Separating is based on the difference in physical properties of the substances… Think about how you would separate.

 Substances – matter that has a uniform and unchanging composition  Atoms and Compounds like table salt, sugar, CO2  Physical properties can be observed.

Unit 1 Matter: Properties and Change. What is matter? Matter – anything that takes up space and has mass. Matter – anything that takes up space and has.

CLASSIFICATION OF MATTER. Pure Substances: Contain only 1 type of material Cannot be separated by physical means (filtration, etc.) Mixtures: Elements:

Chapter 2 “Matter and Change”

Chapter 2 Matter and Energy.

2.1 Properties of Matter Extensive vs. Intensive Extensive- amount of matter in a sample mass- measure of the amount of matter in an object volume- space.

Unit 1: Measurement & Matter

Section 3.1 Properties of Matter

1. To learn about the composition of matter 2. To learn the difference between elements and compounds 3. To define the three states of matter.

Classification of Matter. Matter Matter Anything that has mass and occupies space Anything that has mass and occupies space Pure substance Pure substance.

Matter and Change.

Mixtures of Matter. Classification of Matter.

R ECALL : A mixture is the (physical / chemical) combination of 2 or more ____________. Compounds are the ( chemical / physical) combination of 2 or more.

Matter and Change Chapter 1. Objectives Define Chemistry Define properties of matter.

Matter – Properties and Changes Chapter – Properties of Matter  Matter is anything that has mass and takes up space (mass is the amount of matter.

Ch. 2 Matter and Change. Matter Anything that has mass and takes up space Mass –Amount of matter the object contains.

Methods of Separating Mixtures

+ Separation Methods. + Separating Mixtures Substances in a mixture are physically combined, so processes bases on differences in physical properties.

Matter Properties & Changes. __________ – anything that has mass and takes up space __________ - matter that has a uniform and Properties of Matter Substances.

Introduction to Matter (IC Chapter 1). The total energy of the motion of all of the particles in an object. kinetic energy.

Matter, Properties, and Changes Matter Anything that has mass and takes up space. Anything made from atoms. – Molecules – Cells – People – Air – Water.

Matter Properties & Changes. __________ – anything that has mass and takes up space __________ - matter that has a uniform and unchanging composition…also.

Unit 1 Matter: Properties and Change. Matter: Properties and Change Objectives Students should be able to: Students should be able to: Distinguish between.

Properties of Matter 3.1. Quick Review  Matter is anything that: a) has mass, and b) takes up space  Mass = a measure of the amount of “stuff” (or material)

MIXTURES AND COMPOUNDS. Types of Mixtures Two types of mixtures exist 1. Homogeneous Uniform in nature Cannot tell that it is a mixture by just looking.

Physical Science Unit Classification of Matter.

Matter Practice Quiz 2011.

Ch. 3.  Matter is anything that: a) has mass, and b) takes up space  Mass = a measure of the amount of “stuff” (or material) the object contains (don’t.

SEPARATING MIXTURES Chapter 3. SEPARATING MIXTURES Because substances in a mixture are physically combined, the processes used to separate a mixture are.

+ Separation Methods Ways to separate mixtures. + Separating Mixtures Substances in a mixture are physically combined, so processes based on differences.

Matter and Energy Chapter 1 & 2 vocabulary Chemistry.

Describing Matter. What is Matter? Matter is anything that has mass and takes up space. – Everything around you is matter – You are matter.

(8th) Chapter 2-1 Cornell Notes

Classifying. States of Matter Definite shape and volume Particles tightly packed together Expands when heated incompressible.

Notes 1-1 (obj 1.1 to 1.3).  A.) Matter- What is it?  1.) has mass and occupies space  2.) atoms-building blocks of matter  3.) molecules-2 or more.

1 Elements, Compounds, and Mixtures. 2 What is Matter?  Matter is anything that has mass and volume.  All matter is composed of tiny particles.  Arrangement.

Matter All matter is composed of atoms and groups of atoms bonded together, called molecules. Substances that are made from one type of atom only are called.

The vertical columns of the periodic table Groups.

Classification of Matter. Matter can be divided into pure and impure particle arrangement- A pure substance is anything that contains only one type of.

Matter, Mixtures, and Separations

Separation Methods.

Matter – Properties and Changes

Chapter 3: Matter-Properties and Changes

PHYSICAL SCIENCE MATTER.

Matter - Properties & Changes

Column Chromatography

Classification of Matter

Unit: Introduction to Chemistry

2A.3 & 2B.2 Notes Measuring Matter

Classifying Matter.

Substances Matter that has the same composition and properties throughout is called a substance. When different elements combine, other substances are.

Science Vocabulary 4 week 1.

Classifying Matter (Part 1)

Classifying Matter.

Chapter 2 lesson 1 and 2 review answers

What is Matter? Matter is anything that takes up space and has mass.

Chapter 2 Section 1 Describing matter.

Pure Substances and Mixtures

Classifying Matter and

Classifying Matter Learning Goal: to be able to describe the differences between pure substances and mixtures.

Unit 4: Properties of Matter and the Analysis of Glass

Chapter 2 Matter and Measurement

Mixtures and Compounds

DO NOW Pick up three handouts – one is your notes.

Presentation transcript:

Elements, Compounds, & Mixtures Objectives:  1. Explain the difference between an element and a compound.  2. Compare heterogeneous and homogeneous mixtures.  3. Describe several techniques to separate mixtures. Key Terms:  Element, compound, pure substance, mixture, heterogeneous mixture, homogeneous mixture

Matter Matter is defined as anything having mass that occupies space.  Density is the measurement of matter (Mass/Vol)  The atom is the basic unit of matter  A group of similar atoms is called an element  An element cannot be separated into simpler substances by physical or chemical means.  Considered a pure substance  There are slightly more than 100 known elements. (listed on the periodic table)  The periodic table organizes elements by their properties.  Can be represented by a one or two letter abbreviation. (C,H,O,N,P,Na,Cl,Al,Ca)

Compounds A compound is a group of elements chemically combined in fixed ratios.  Compounds form during chemical reactions. (2H 2 + O 2  2H 2 O)  Compounds can be separated into their elements by chemical means. (2H 2 O  2H 2 + O 2 )  The symbols used to describe compounds describe the exact amount of atoms on the compound. (C 6 H 12 O 6 )  Cannot be separated by physical means.  Considered a pure substance

Mixtures Aggregates of substances (compounds, elements, or mixtures) physically combine to form mixtures  Mixtures can be homogeneous (Also called a solution)  Do not contain visibly different parts – milk  Particles are equally distributed  The solution is in a single phase  Mixtures can be heterogeneous  Visibly different parts  Unequally mixed  Separates under normal conditions  May be in different phases  Mixtures may be separated by physical means

Physical Separation  filtration – removal of a solid substance by size  distillation (boiling) – removal of a liquid substance by condensing the vapor  crystallization (evaporation) – removal of a substance that is dissolved in solution  chromatography (flowing along a stationary surface) – separated by mass (lightest travels furthest)  centrifugation (spinning to find differences in weight) - separated by mass (most massive on the outside)