CHAPTER 2 MATTER - Fox Valley Lutheran High School
MATTER CHAPTER 2 2.1 WHAT IS CHEMISTRY? Chemistry is the study of ____ and how it ___. Make list of some things that are matter and another list of how it may change. MATTER HOW IT CHANGES
2.1 WHAT IS MATTER? MATTER IS ANYTHING THAT HAS ____ AND OCCUPIES _____. Make a list of things that are matter and things that are not matter. MATTER NOT MATTER 1. 1.
2. 2. 3. 3. THE SMALLEST UNITS OF MATTER ARE: ELEMENTS contain only one kind of ATOM The smallest part of an element is an ATOM. COMPOUNDS contain atoms of more than one kind of element. The smallest part of a compound is a MOLECULE . ELEMENT is to ATOM as ____ is to MOLECULE!!
PURE SUBSTANCE or MIXTURE? PURE SUBSTANCE fixed _______ definite ______ all the elements (listed on the periodic table) all compounds (all have a formula) Examples: distilled water, salt
MIXTURE a combination of more than one ___ ___ can be separated into pure substances proportions may vary Examples: most water,
air MIXTURES MAY BE ANY COMBINATION OF SOLIDS, LIQUIDS OR GASES. SOLID/SOLID - _________________ SOLID/LIQUID - ________________ SOLID/GAS - ___________________ LIQUID/LIQUID - _______________ LIQUID/GAS - __________________ GAS/GAS - _____________________ TYPES OF MIXTURES:
HETEROGENEOUS or 1. not uniformly mixed 2. after time the substances may settle 3. liquids are immiscible 4. Fresh milk from a cow 5. Orange juice with pulp HOMOGENEOUS 1. uniformly mixed 2. can not easily be separated 3. liquids are miscible
4. Store milk that has been homogenized 5. Soda Pure Substance or Mixture??? MATTER PURE SUBSTANCE ELEM ENT COMPOUND
M IX T U R E HETEROGENEOUS HOMOGENEOUS 2.2 MATTER AND ENERGY the KINETIC MOLECULAR THEORY states: All matter is made of atoms or molecules Atoms and molecules are always in motion. Particles that are warmer or less massive
move faster than colder or heavier particles. The Kinetic Molecule - Quiz Molecules move by: A. Forces acting on them B. Their own internal energy C. Both of the above Cold causes molecules to: A. Move slower B. Lose energy C. Both of the above
Heat causes molecules to: A. Move faster B. Gain energy C. Both of the above Properties of the STATES OF MATTER are: State of Matter GAS LIQUID SOLID
Shape Volume Energy THE AMOUNT OF ENERGY DETERMINES THE STATE OF MATTER SOLID MORE LIQUID
GAS attraction between molecules LESS energy RELEASED energy is
LESS MORE ABSORBED CHANGES OF STATES OF MATTER GAS CONDENSE GAS EVAPORATE
SUBLIMATION LIQUID FREEZE MELT SOLID SOLID Graphing Change of State
Graphing Change of State HOW CHANGE OF STATE AFFECTS MATTER: AMOUNT OF MASS ? ______ KIND OF MOLECULE ? ______
NUMBER OF MOLECULES? _____ VOLUME (space needed)? ______ Gods law of CONSERVATION: MASS and ENERGY cannot be ____________ or ____________ REVIEW ENERGY
KINETIC MOLECULAR THEORY MATTER SOLID LOW ENERGY LIQUID MEDIUM ENERGY GAS HIGH ENERGY
2.3 TWO PROPERTIES OF MATTER: CHEMICAL 1. How it reacts 2. Burn, decay, rust. 3. Form new substances 4. PHYSICAL 1. Change of state 2. Density, boil, cut,
dissolve 3. NO new substance 4. REVIEW CHANGES IN GODS WORLD CHEMICAL PHYSICAL REACTIONS DECAY / RUST / GROW
MELT / BOIL / CUT / CRUSH MATTER _________ __________ __________ (THE STATES OF MATTER) CAN UNDERGO TWO TYPES OF CHANGES ___________ ____________
AND GOD ESTABLISHED TWO LAWS TO GOVERN ALL MATTER __________ __________ Study for the TEST!!!!! Vocabulary words Identify as element or compound Identify physical or chemical property of a substance Identify if a change is physical or chemical Energy being absorbed or released
Key must be as long as plaintext else repeat a keyword . Unit-1: Symmetric Cipher ModelDarshan Institute of Engineering & Technology . Vigenere Cipher. Multiple ciphertext letters for each plaintext letter. Weakness is repeating, structured keyword.
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