Unit 2 Matter Chem 1
Agenda 10/4 • Panther Drill 4 • Notes (Properties and States of Matter) • PD Redux, If I knew then what I know now • WS Sci Notebook Sec 3.1 • Close/Exit Ticket
Panther Drill 4 Identify the state of matter of the following: (IE is it Liquid ect) O2 Water Ice Water Vapor Inside Florescent Lights Blood Jell-O The Sun Gas Liquid Solid Gas Plasma Liquid Solid Mostly Plasma, Some Gas
Substances A substance is matter that has definite composition and properties. i.e. Table salt (NaCl) always has the same make-up and properties no matter if you put it on your popcorn in Lake City, Murrells Inlet, or Lake City Colorado. Whereas salt water found in the pacific ocean is different than salt water found in the arctic ocean.
COMPOSITION OF MATTER What is MATTER? Anything that Takes up Space and Has Mass. What are the States of Matter? Solid, Liquid, Gas, Plasma 1) Solid: Definite volume and definite shape (Glass) 2) Liquid: Definite volume indefinite shape(Water)
Solids and Liquid In a solid. all molecules vibrate and forces of attraction hold them in place. In a liquid the molecules have partially overcome the forces of attraction and still partially in contact
COMPOSITION OF MATTER Gas: Indefinite volume, indefinite shape. IE Car Exhaust Plasma: High temperature physical state, made up of free electrons and ions of the element IE Florescent Lights, Mushroom Cloud, the northern lights, and Plasma TVs.
Gas and Plasma Molecules have completely over come attractive forces, any contact is random. Movement is extremely fast and electrons are striped away from the molecules.
Characteristics of States of Matter http://www.nasa.gov/images/content/147515main_phases_large.jpg
Properties Extensive properties: properties that depend on how much of matter is present. i.e. Volume and Mass Intensive properties: does not depend on how much matter is present i.e.: density and boiling point
Physical Properties Physical Properties: something that can be changed in a substance w/o changing its identity. i.e.: Melting Ice Cutting a 2x4 in half Boiling
Chemical Properties Matter Chemical Properties: changes that result in a substance being changed into new substances. i.e.: Burning charcoal = carbon ash and O2 & CO2 Iron Rusting ** A physical or chemical change requires energy to be added to what ever is changing (aka the system) Energy can be heat or light other forms
Shoulder Partners Answer and check ea. other answers Mushroom Cloud S,L,G,P Shampoo S,L,G,P Jell-o S,L,G,P Burning Gas Physical or Chemical Baking Cookies Physical or Chemical Maxing Salt water Physical or Chemical Odor Extensive or Intensive Weight Extensive or Intensive Color Extensive or Intensive
Compare and Contrast Extensive and Intensive properties Before you pack up Show it to me before you leave
10/5 • PD 5 • Notes • Example Conservation of Mass • Do practice problems w/ partners • Exit Problem
Modified Seats 3rd Period Justice Porchea Go to your seats and Panther Drill will start at bell Spud Yessie Galloway Gaskins Pace Stukes Ashley Belinda Amber Cordrick Wade Josh Kyianna Terrance Breanna
Modified Seating 6th Period Sade’ Jasmine Kayla Nasia Jaron Justin Demond Whitney Tykosha Terica Shekia Willie Quay Keshon Reggie Steve Tyiesha Rayneesha Jamika Diamond Dominque
Panther Drill #5 Think about what you know about nature, tell me about how the physical phase change of water, effects the natural world.
Kinds Physical Changes Freezingis the change of state from a liquid to a solid. Meltingis the change of state from a solid to a liquid. Vaporizationis the change of state from a liquid to a gas. Condensationis the change of state from a gas to a liquid. Sublimationis the change of state from a solid directly into a gas. Depositionis the change of state from a gas directly into a solid.
Example More energy in the system Less energy in the system
Chemical Reactions In a chemical reaction there are the reactants and the products. Reactants: what you start with Products: what you end with 99.08g Fe + 55.92 g O2 155g Fe2O3(Rust) ReactantsProducts What is the mass of the Fe and the O? What is the mass of the Fe2O3? 99.08g + 55.92g 155g
Law of Conservation of Mass “Matter can’t be created or destroyed in a chemical reaction, it is conserved” That means the mass of the reactants = the mass of the products. Mass reactants = Mass products Get in your pairings and work on problems
Partners 1st Period Brad & LaTonya Mary & Qualisha Quanisha & Howard Hank & Brenton Jess & Abria Raven & Cody Sam and Devonte Cassidy and Devonta Trevon’ & Drequan
Partners 3rd Period Josh & Cordrick Kyiana & Belinda Breanna & Terrance Justice & Yessie Galloway & Cadejah Gaskins and Spud Brandon and Porschea Ashley, Amber, & Clarence
Partners 6th Period Jaron & Willie Steve & Diamond Jamika & Dominique Tiesha, Keshon &Shekia Reggie, & Kayla Nasia & Tykosha Justin & Quay Sade’ & Whitney Jasmine & Demond Rayneesha & Terica
Partner A show partner B how to do Problem #1 Then Reverse roles • When 245 grams of KClO3 are heated, the KClO3 breaks down into 78 grams of potassium, 71 grams of chlorine and some oxygen gas. What is the mass of oxygen gas formed? • You have 729 g of NaOH (Sodium Hydroxide) is broken down into its parts. What resulted was 459 g of Na, 127 g of Oxygen, and how many grams of Hydrogen?
Do number 6,7&8 from pp 78 in your text by yourselves, and show it to me, before you pack-up
Agenda 10/6 • PD #6 • Notes/Discussion (Mixtures/Pure Substances/Separation) • PD Redux • Exit Assignment • Lab Thurs. Reminder
Panther Drill #6 Identify the following items (NOT as solid liquid or gas) but as mixtures or pure substances. Aluminum Table Salt Water Stainless Steel Kool Aid Carbon Pure Mixture Pure Mixture Mixture Pure DRESS FOR LAB Tomorrow THURSDAY 10/7
Classification of Matter Matter is classified as either a MIXTURE or a PURE SUBSTANCE. 1) Pure Substances: is homogeneous and has a fixed composition. Every sample has the exact same properties IE all pure water boils at 100C and freezes at 0C Every sample has the exact same composition IE all pure water has 11.2% H and 88.8% O2
Classification of Matter 2 kinds of pure substances: Compounds and Elements Elements: a pure substances that can not be broken down into simpler parts IE Carbon Compound: a substance that can be broken in to simpler substances. IE WATER - H and O
Classification of Matter 2) Mixture: blend of 2 or more kinds of matter, where each different type of matter keeps its own identity or properties. Mixtures can be broken down into their original parts. 2 kinds of mixtures: Homogeneous: these have uniform composition always in a single phase, blended uniformly. • Steel (a mix of carbon and iron) • Milk • Mayonnaise • Solutions
Classification of Matter Mixtures Cont. Heterogeneous: these are not uniform, their composition changes from sample to sample, they are not blended smoothly. • Buttermilk • Fresh squeezed orange juice • Homemade mashed potatoes • Pond water
Separating Mixtures Filtration: using a filter to separate the a heterogeneous mixture of solid and liquid Distillation:using different boiling points of substances in a homogeneous mixture to separate it
Separating Mixtures Crystallization: when pure solid forms from a liquid solution containing as much solid as can be held be the liquid (super saturated). Solid is then formed as the liquid evaporates (Think making rock candy.) Sublimation: separation of solids and gas w/o going through liquid state
Separating Mixtures Chromatography: separate the components of a mixture (liquid or gas) by allowing it to move across another material (i.e. paper). The components separate because the move across the paper at different rates.
If I only knew then what I know now… Identify the following items as mixtures ore pure substances. Oxygen Sugar Sugar Gator Aid Pizza Water Pure Mixture Pure Mixture Mixture Pure
Text assignment pp 83 #16,18 Due before you leave
Get into you lab Groups Start Pre-Lab questions and assign jobs to members. • Equipment Person • Experimenter • Recorder • Leader/Clean up • If 5 in group then divide leader and cleanup
Thursday 10/7 Agenda • Panther Drill 7 • Lab “” • Closure
Panther Drill #7 Get into your lab groups and see who in your group is in violation of Lab Safety Rules.
Friday 10/8 Early Dismissal Agenda • Panther Drill 8 Turn in for quiz • Finish Analysis and Conclusions for lab from 10/7
MONDAY Agenda 10/11 • PD 8 quiz • Notes/Discussion (Elements/Compounds/Periodic Table basics) (10 min) • WS 3.4 (10 min) • Trading Card Game Elements/Compounds (10 Min) • Exit Ticket 5 min
2 Panther Drill #8 1 Write out 2 sample quiz questions based on last weeks material that start with: Write out 1 sample quiz questions based on last weeks material that start with: Can you explain in your own words….? How many...? Can you distinguish between ….?Can you name the...?Can you tell why...?Find the meaning of...? Can you design a ... to ...?Compare and contrast….? Explain the differences between…? Rank the following based on…..
QUIZCHOOSE 4 TO ANSWER • Compare and contrast a physical and chemical change. • Explain the best way to separate the pulp from fresh squeezed OJ, and the best way to separate salt water into its components. • Explain the law of conservation of mass. • Compare the molecule structure of the all 4 states of matter. • List and explain 5 of the 6 physical changes of matter.
Elements Elements are pure substances that can not be broken down into simpler substances by physical or chemical means. Oxygen, Carbon, Boron ect. Abbreviated by 1,2,or 3 letter abbreviation 1st letter always capitalized. O, Al, Zn, Uus (Ununseptium) 91 NATURALLY occurring elements on the earth.