PPT-Compounds, Elements & Mixtures

1 st Year Chemistry 1 Elements Elements amp Atoms All substances are made up from tiny particles called atoms When a substance is made up of only one type of atom it is called an element The element iron is made up of iron atoms the element hydrogen is made up of hydrogen atoms the element sulphur is made up of sulphur atoms and so on. Mr. McMartin. Beta Science. Vocabulary. Compound: a pure substance composed of two or more elements that are chemically combined.. Compounds. Made of two or more elements that are chemically combined.. Chapter 9.3 Part 1. Q: What is the dullest element? A: . Bohrium. . Key concepts:. Describe 3 properties of mixtures. Describe 4 methods of separating mixtures. Give everyday examples of mixtures. Key Vocabulary:. Chapter 2. Bamboo has properties that make it a good choice for use in chopsticks. It has no noticeable odor or taste. It is hard, yet easy to split, and it is heat resistant. You will learn how properties can be used to classify and identify matter.. September . 17, . 2012. . Ms. Smith. Mrs. Malone. DO NOW:. Date. : . September 17, 2012. TEKS 6.5B Recognize that . a limited number of the many known elements comprise. the largest portion of solid . Mr. McMartin. Beta Science. Vocabulary. Compound: a pure substance composed of two or more elements that are chemically combined.. Compounds. Made of two or more elements that are chemically combined.. Introduction. matter. : anything having mass and volume. . mass. :. . weight. :. . volume. :. . units: . L, dm. 3. , mL, cm. 3. . state of matter. :. . the amount of matter in an object. . the pull of gravity on an object. Divisions of Matter. Pure Substance. Cannot be broken down and retain its properties.. Has a fixed composition.. Every sample of a pure substance has EXACTLY the same composition AND exactly the same characteristics - homogeneous. Chapter 5. Ex:. Melting. Freezing. Boiling/evaporation. Condensation. Sublimation. Dissolving. Bending. Crushing. Breaking. Chopping. Filtration. distillation. Physical change. Does not make a different substance. Pure substances cannot be broken down by physical means.. Pure substances . contain . only one kind of molecule.. Molecules are small groups of atoms that make up matter. Example: Water is a molecule of two hydrogen atoms, and one oxygen atom. How can matter be classified?. Atoms . are the smallest unit of an element that maintains the properties of that element.. The most basic ingredients to . all . matter. Atoms can be combined in three majors ways:. Pure Substances. A sample of matter that has definite chemical and physical properties.. Elements. Atoms. Compounds. Molecules. Elements. pure substance that cannot be separated into simpler substance by physical or chemical means. . Elements, Compounds, Mixtures All matter is made of atoms. Atoms are the smallest unit of an element that maintain the properties of that element. All matter can be classified as… Elements Elements are made of only one type of atom Which of the following is a physical change that requires energy?. H. 2. O (l) .  H. 2. (g) + O. 2. (g). H. 2. O (l) .  H. 2. O (s). H. 2. O (s) .  H. 2. O. . (l). H. 2. (g) + O. 2. (g). . For Example: If you have a piece of gold and cut it into smaller and . smaller pieces, . you would eventually reach a point where you couldn’t cut the gold up any smaller. That smallest piece would be an atom of gold..