Elements & Compounds Notes TEKS: (6.5) Matter and energy. The students knows the differences between elements and compounds Differentiate between elements.

Slides:

Advertisements

Similar presentations

Unit 6 Chemical Reactions

Advertisements

Chapter 9 Chemical Reactions. 9.1: Reactions & Equations Objectives Recognize evidence of chemical change Represent chemical reactions with equations.

Last night’s homework:

Chemical Formulas & Equations 8 th Grade Science 2010 H 2 O NaCl CO 2 2H 2 + O 2 = 2H 2 O.

- + Sodium atom (Na) Chlorine atom (Cl) Sodium Chloride NaCl

Atoms Elements Molecules Compounds Pure Substance Mixture Solution.

Elements, Compounds and Mixtures

Mixtures, Elements, Compounds

Unit 3: Interactions of Matter and Energy Vocabulary of Instruction:

Sometimes I pretend to be normal, but then it gets boring, so I go back to being me.

Elements, Compounds and Mixtures

Chemical Reactions & Chemical Formulas

Matter Vocabulary. __________________ anything that has mass takes up space matter.

Chemical Formula D. Crowley, 2007.

Compounds Chemistry Lecture #3 Elements Entangled Element – the simplest type of pure substance Pure substances that are made of more than one element.

Chemical Formulas & Equations 8th Grade Science 2012

Chemical Reactions and Equations CLASS NOTES. Review from last class What types of changes can occur as a result of chemical reactions? – Can you give.

Changes in Matter Section 3.2

Substances, Compounds & Mixtures How everything is put together.

Chapter 6 Chemical Reactions and Equations

Chapter 2: Matter and Change 2.1 Matter. I. Properties of Matter A. Substance: matter with uniform and definite composition Write down 3 examples. Which.

Chemical Formulas and Equations H 2 O NaCl CO 2 2H 2 + O 2 = 2H 2 O.

Chemical Reactions Chapter 10.

Chem 11. Indications of a chemical reaction Energy absorbed or released Color change Gas produced Precipitate- solid that separates from solution Not.

Substances, Compounds & Mixtures How everything is put together.

Chapter 1 Introduction to Matter Section 1 Describing Matter

Monday January 7, 2013 (Introduction to Chemical Reactions and Equations)

Elements and Compounds. What is an element? A pure substance composed of the same type of atom throughout. Cannot be broken down into simpler substances.

Science 5 Physical Science. Standard/s Covered Students will learn… a.what a chemical reaction is. b.how compounds are formed. c.how formulas of compounds.

Chapter 2.3 Elements and Compounds -Pure Substances: Elements- simplest form of matter; unique properties; are on the Periodic Table; Au, Ag, Hg, K, N,

Chemical Reaction Clues Gas formation: bubbles may indicate a chem. Reaction Solid formation: a solid forms in a liquid (a precipitate) Color change: example-bleach.

Chapter 11.1 Pages Chemical Reactions Occur everywhere and all the time Rusting iron, Break down of glucose, Exploding hydrogen Evidence of chemical.

Describing Chemical Reactions The process by which the atoms of one or more substances are rearranged to form different substances is called a chemical.

Chapters 7 and 8. What is a chemical reaction  A chemical reaction (a.k.a, chemical change) is a process in which one or more substances change into.

What is Matter made of? Atoms – the basic particle of which all matter, EVERYTHING, is made * A sheet of paper is approximately 10,000 atoms thick.

–Chemical reactions occur when bonds between the outermost parts of atoms (valence electrons) are formed or broken.

ATOMS. The smallest particle of an element that has properties of that element is called the ATOM. It is the BASIC BUILDING BLOCK OF ALL MATTER. An atom.

Elements, Compounds, & Chemical Names. Elements A pure substance that cannot be separated into a simpler substance by physical or chemical means. Elements.

Bell Work Apr 14, 2015 Instructions: On your paper, do the following… 1) Select the best answer (just write letter A or B) 2) Explain what is wrong with.

When two or more substances react to produce new compounds with different physical and chemical properties.

What is Chemistry? Chemistry is the study of matter.

Elements, Compounds, and Mixtures

Elements, atoms, molecules, mixtures

Naming Compounds Created by: Mrs. Dube.

What is Matter made of? Atoms – the basic particle of which all matter, EVERYTHING, is made * A sheet of paper is approximately 10,000 atoms thick.

CHEMICAL REACTIONS Chapter 3.1.

Compounds & Chemical Bonding

Introduction to Chemistry

Chemistry of Living Things Part 1 Basic Chemistry

Atoms, Elements, Molecules,& Compounds

Chapter 2.1 Part 2 Elements By Sherry Totten.

Properties of Matter.

6th Grade Review- Discuss only- Do not write

Classification of Matter Review!

Atoms, Molecules, Elements, and Compounds

1. WHAT IS A COMPOUND A PURE SUBSTANCE MADE OF TWO OR MORE ELEMENTS CHEMICALLY BONDED HAS IT’S OWN PHYSICAL AND CHEMICAL PROPERTIES CAN ONLY BE SEPARATED.

What are atoms, elements, molecules, and compounds?

2.3 Chemical Properties.

Daily Science What’s the rule for how many electrons can fit in each orbital 1-3? What does valence mean? Draw a Bohr model for Nitrogen. Remember to determine.

What is Matter made of? Atoms – the basic particle of which all matter, EVERYTHING, is made * A sheet of paper is approximately 10,000 atoms thick.

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

Chemical Reactions.

Chemical Reactions.

Chemical Changes.

Elements and Compounds

Presentation transcript:

Elements & Compounds Notes TEKS: (6.5) Matter and energy. The students knows the differences between elements and compounds Differentiate between elements and compounds on the most basic level Identify the formation of a new substance by using the evidence of a possible chemical change such as production of a gas, change in temperature, production of a precipitate, or color change

Chemical formula – a description that uses numbers and element symbols to represent the elements that compose a compound. Chemical Reaction – A change in matter that results in the formation of a new substance with different properties Compound – A substance made of 2 or more elements that are chemically combined Molecule – the smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of 2 or more atoms. Precipitate – a solid or solid phase separated from a solution.

Elements vs Compounds Elements are represented by chemical symbols (ex. Cl - Chlorine Na - Sodium) Compounds are made of 2 or more elements chemically combined. Compounds are represented by chemical formulas (ex. Sodium Chloride -NaCl) Chemical formulas provide the elements present and the ratio of the elements in the compound.

CompoundFormulaElements in the Compound WaterH2OH2OHydrogen & Oxygen Sugar (glucose) C 6 H 12 O 6 Carbon, Hydrogen, & Oxygen Table saltNaClSodium & Chlorine Carbon dioxide CO 2 Carbon & Oxygen

Chemical Reaction When a chemical reaction occurs, the arrangement of the atoms change and a new substance with different properties is created. 6CO H 2 0 C 6 H 12 O 6 + O 2 Reactants Product 6 Carbon dioxides + 6 waters react together to produce sugar and oxygen

Chemical Reaction C + O 2 CO 2 Carbon + Oxygen Produces Carbon Dioxide Carbon and oxygen chemically combine to form a new compound, carbon dioxide.

Evidence of a Chemical Change or Reaction: Gases formed or bubbles seen Color and or odor change 2 or more liquids combine to form a liquid and a solid called a precipitate. Change in temperature