of course, not present in the water as chunks of metal, but as ions.
|
|
- Martina Holmes
- 5 years ago
- Views:
Transcription
1 Name: Teacher: Date: Class/Period:
2 This passage is adapted from the book What Einstein Told His Cook: Kitchen Science Explained by Robert L. Wolke ( 2002 by Robert L. Wolke). The name water filter is misleading. The word filtered literally means only that the water has passed through a medium containing tiny holes or fine passageways that screen out suspended particles. When the water supply in a restaurant is suspect and you ask a waiter whether the water is filtered, an affirmative reply may mean little more than that you can see through it. In the United States, filter has become a generic word for a device that does more than clarify the water; it purifies it by removing tastes, odors, toxic chemicals, and pathogenic microorganisms. The idea is to make sure the water is safe and palatable. Your nose and palate will tell you whether you want to remove odors and tastes. As far as toxic chemicals and pathogens are concerned, an analysis can be provided by many local water companies or independent labs. Depending on your level of concern, you may feel like searching for a filter that will remove everything from the water but its wetness. Keep in mind, though, that it s a waste of money to buy a device to remove things that aren t there. Continually replacing the cartridges can be expensive. What kinds of bad stuff can contaminate water? Industrial and agricultural chemicals; chlorine and its byproducts; metal ions; and cysts, which are tiny chlorine-resistant capsules of protozoan parasites such as cryptosporidium and giardia that can cause abdominal cramping, diarrhea, and even more serious symptoms in people with weakened immune systems Commercial water filters, which may be either batch-at-a-time pitchers or attachments to faucets or supply lines, remove contaminants other than cysts in three ways: with charcoal, with ion exchange resins, and with actual particle filters, where a screen acts as a barrier to reduce the presence of contaminants. The workhorse of most water filters is activated charcoal, a material that has a prodigious and indiscriminate appetite for chemicals in general and gases (including chlorine) in particular. Charcoal is made by heating organic matter such as wood in a limited supply of air, so that it decomposes into porous carbon but doesn t actually burn. Depending on how it is manufactured, the charcoal can contain an enormous amount of microscopic internal surface area. An ounce of so-called activated charcoal the best kind is made from coconut shells can contain some 2,000 square feet of surface area. That surface area makes a highly attractive landing field for wandering molecules of impurities in water or air, and when they land they stick. Activated charcoal is used to adsorb colored impurities from sugar solutions and to adsorb poisonous gases in gas masks. (That wasn t a misprint. Adsorption, with a d, is the sticking of individual molecules to a surface, while absorption, with a b, is the wholesale soaking up of a substance. Charcoal adsorbs; sponges absorb.) In water filters, the charcoal removes chlorine and other odoriferous gases and a variety of chemicals such as herbicides and pesticides. Now about those ion exchange resins. They re little plastic-like granules that remove metals such as lead, copper, mercury, zinc, and cadmium. These are,
3 of course, not present in the water as chunks of metal, but as ions. When a chemical compound of a metal dissolves in water, the metal goes into solution in the form of ions: positively charged atoms. We can t just pluck these ions out of the water with charcoal, for example, because removing positive charges would leave the water with a surplus of negative charge, and Nature makes that a very costly operation in terms of expended energy, vastly preferring that the world remain electrically neutral. What we can do is exchange those positive ions for other, more harmless positive ions: sodium ions or hydrogen ions, for example. That s what an ion exchange resin does. It contains loosely bound sodium or hydrogen ions that can swap places with metal ions in the water, leaving the metals effectively trapped in the resin. The resin (as well as the charcoal) eventually becomes fully loaded with contaminants and must be replaced. Most domestic water filters contain both activated charcoal and an ion exchange resin, usually mixed together into a single cartridge. They therefore remove metals and other chemicals, but not necessarily pathogenic cysts.
4 1) 2) 3) 4)
5 5) 6) 7)
6 Answer Key 1) C 2) D 3) D 4) C 5) D 6) B 7) C
Activity 31. Activity 32
Activity 30 1. Which water sample tasted best to you, and why? 2. would you spend the extra money on bottled spring water, after your taste-test experience? Why or why not? 3. Some people might disagree
More informationADSORPTION. Briefly, adsorption is the surface accumulation of material.
ADSORPTION Briefly, adsorption is the surface accumulation of material. Adsorption is a unit operation in which dissolved constituents are removed from the solvent (water) by transfer to the surfaces of
More informationChapter 10. How to do Calculations for Chemical Reactions I Background What Chemical Equations Tell Us
Chapter 10 How to do Calculations for Chemical Reactions I When chemists plan to synthesize a chemical compound, they need to calculate what mass of each reactant that is needed. To do so, they need the
More informationMIXTURES, COMPOUNDS, & SOLUTIONS
MIXTURES, COMPOUNDS, & SOLUTIONS As with elements, few compounds are found pure in nature and usually found as mixtures with other compounds. A mixture is a combination of two or more substances that are
More informationChemistry Unit Test 1 Review
Chemistry Unit Test 1 Review Name: S8P1a. Students will distinguish between atoms and molecules. 1. Which of the following particles combine to form molecules? a. Atoms b. Protons c. Electrons d. Compounds
More informationApplications in Forensic Science. T. Trimpe
Applications in Forensic Science T. Trimpe 2006 http://sciencespot.net/ What is chromatography? From Wikipedia... Chromatography (from Greek word for chromos for colour) is the collective term for a family
More informationMatter Properties and Changes
Matter Properties and Changes What is matter? anything that takes up space (volume) and has mass everything around you is made up of matter matter has 3 main states: solid, liquid, and gas Physical Property
More informationWhat is Chemistry? Some random thoughts from the Professor for what they re worth
What is Chemistry? Some random thoughts from the Professor for what they re worth CHEMISTRY Chemistry is the science that describes matter: its properties, the changes it undergoes Important questions:
More information6.1- Chemical vs. Physical - Pre-Lab Questions
6.1- Chemical vs. Physical - Pre-Lab Questions Name: Instructor: Date: Section/Group: 1. Using the procedures for each station provided as a guide, predict which properties you will be looking for in each
More informationSorption of Water Pollutants
Sorption of Water Pollutants Prepared by Kimberly Hetrick and Ljiljana Rajic Objective The overall goal of this session is to learn about sustainable ways to deal with water contamination while specific
More informationUnit B Analysis Questions
Unit B Analysis Questions ACTIVITY 12 1. What two types of information do you think are the most important in deciding which material to use to make drink containers? Explain. 2. What additional information
More informationName: 1. Which of the following is probably true about 300 ml of sand and 300 ml of water?
Name: Jaguar Review #2 Physical Sciences Benchmark A: Relate uses, properties and chemical processes to the behavior and/or arrangement of the small particles that compose matter. 1. Which of the following
More informationName: Section: Matter: Atoms and Properties Practice Test
Name: Section: Matter: Atoms and Properties Practice Test Directions: For each of the questions or incomplete statements below, choose the best of the answer choices given and write your answer on the
More informationMatter and Energy. Section 2.1 Chapter 2. Representations of Matter: Models and Symbols. Goal 1. Goal 2
Section 2.1 Chapter 2 Matter and Energy Representations of Matter: Models and Symbols Goal 1 Goal 2 Identify and explain the difference among observations of matter at the macroscopic, microscopic, and
More informationImportant Examples of Chemical Change
Important Examples of Chemical Change chemical change: the change that occurs when substances react in a chemical reaction to create different substances When was the last time you watched an awesome display
More informationMatter and Its Properties
Section 2 4A, 4B, 4C, 4D Main Ideas Atoms are the building blocks of matter. All substances have characteristic properties. Matter can be a pure substance or a mixture. 4A differentiate between physical
More informationChemical reactions are processes in which the atoms of one or more substances are rearranged to form different chemical compounds.
Chapter 11 Chemical Reactions Notes Chemical Reactions: Chemical reactions are processes in which the atoms of one or more substances are rearranged to form different chemical compounds. How to tell if
More informationCEE 371 Water and Wastewater Systems
Updated: 22 November 2009 CEE 371 Water and Wastewater Systems Print version Lecture #23 Drinking Water Treatment: Ion Exchange, Adsorption & Arsenic Reading: Chapter 7, pp.262-266 David Reckhow CEE 371
More informationRemoval of suspended and dissolved organic solids
Removal of suspended and dissolved organic solids Types of dissolved solids The dissolved solids are of both organic and inorganic types. A number of methods have been investigated for the removal of inorganic
More informationMixtures and Solutions: The Sugar in the Tea by Emily Sohn and Joseph Brennan
Readers Mixtures and Solutions: The Sugar in the Tea by Emily Sohn and Joseph Brennan Science Objective This book introduces children to some basics of chemistry as they explore the atoms and molecules
More informationMixtures, Solubility, and Acid/Base Solutions
CHAPTER 9 Mixtures, Solubility, and Acid/Base Solutions Substances and Mixtures What do you think? Read the two statements below and decide whether you agree or disagree with them. Place an A in the Before
More informationObjective Students will gain an understanding of how the properties of a solid material can affect how it interacts with water.
OOBLECK! (1 Hour) Addresses NGSS Level of Difficulty: 4 Grade Range: K-2 OVERVIEW Students will examine the behavior of different types of solids when they are dissolved in water and explain those behaviors
More informationCOC Biotechnology Program
COC Biotechnology Program High Performance Liquid Chromatography (HPLC) Version B Chromatography is used by scientists to separate one substance from another in companies such as: food and beverage, pharmaceutical,
More informationWhat is Matter? How can matter be classified? Every sample of matter is either an element, a compound, or a mixture.
Matter Section 1 What is Matter? How can matter be classified? Every sample of matter is either an element, a compound, or a mixture. matter: anything that has mass and takes up space Matter Section 1
More informationAmount of Substance and Its Unit Mole- Connecting the Invisible Micro World to the Observable Macro World Part 2 (English, mp4)
Amount of Substance and Its Unit Mole- Connecting the Invisible Micro World to the Observable Macro World Part 2 (English, mp4) [MUSIC PLAYING] Instructor: Hi, everyone. Welcome back. I hope you had some
More informationName: Date: Class Notes Chemistry. Energy is the ability to move or change matter.
Name: Date: Class Notes Chemistry Energy Energy is the ability to move or change matter. Everything in the universe consists of two things: energy and matter. Actually, energy and matter are different
More informationì<(sk$m)=cdfged< +^-Ä-U-Ä-U
Standards Preview Physical Sciences Standard Set 1. Physical Sciences 1. Elements and their combinations account for all the varied types of matter in the world. As a basis for understanding this concept:
More informationUniform properties throughout! SOLUTE(S) - component(s) of a solution present in small amounts.
37 SOLUTIONS - a SOLUTION is a HOMOGENEOUS MIXTURE. Uniform properties throughout! - parts of a solution: SOLUTE(S) - component(s) of a solution present in small amounts. SOLVENT - the component of a solution
More informationChapter 9 STOICHIOMETRY
Chapter 9 STOICHIOMETRY Section 9.1 The Arithmetic of Equations OBJECTIVE Calculate the amount of reactants required or product formed in a nonchemical process. Section 9.1 The Arithmetic of Equations
More informationYou Matter! Matter is anything that has mass and takes up space.
You Matter! Matter is anything that has mass and takes up space. An atom is the smallest unit of ordinary matter. Atomic Theory: An atom has a small positively charged nucleus surrounded by a large region
More informationMatter Questions. Pure Substances Questions. 1. How is matter classified? 2. What is a pure substance? Give an example of a pure substance.
Unit 6 ~ Learning Guide Name: Instructions: Using a pencil, complete the following notes as you work through the related lessons. Show ALL work as is explained in the lessons. You are required to have
More informationChemistry Final Study Guide KEY. 3. Define physical changes. A change in any physical property of a substance, not in the substance itself.
Chemistry Final Study Guide KEY Unit 2: Matter & Its Properties, Lesson 1: Physical and Chemical Properties & Changes 1. Define physical properties. The characteristics of a substance that can be observed
More informationScience Wednesday - Friday September 21st - 23rd EQ: How is water important? What gives water its unique properties?
Science Wednesday - Friday September 21st - 23rd EQ: How is water important? What gives water its unique properties? On your desk: Paper Pencil for notes Assignments: Thirsty Abe Climbing Water Water Metal
More informationVocabulary: Matter: has mass and takes up space (pure substances and mixtures) Pure Substances: composition definite, elements and compounds.
Unit 2: Composition and Properties of Matter Review Elements, Compounds, Mixtures and Physical/Chemical Properties and Changes, Water Properties and Biogeochemical Cycles Vocabulary: Matter: has mass and
More informationmodels (three-dimensional representation containing essential structure of
Unit 2 Matter The universe consists of matter and energy. Chemistry is the branch of science the studies matter as well as the changes it undergoes and the energy changes that accompany such transformations.
More informationChemical reactions are processes in which the atoms of one or more substances are rearranged to form different chemical compounds.
Chapter 9 Chemical Reactions Notes Chemical Reactions: Chemical reactions are processes in which the atoms of one or more substances are rearranged to form different chemical compounds. How to tell if
More informationChapter 2 - Matter Chem 6 Notetaker
Chapter 2 - Matter Chem 6 Notetaker Name: Group: Date: Directions: Use the textbook to complete the following notes. Terms in italics are vocabulary terms. Their definitions should be memorized and understood.
More informationPlant Nutrition and Transport. Chapter 29
Plant Nutrition and Transport Chapter 29 Overview: Underground Plants The success of plants depends on their ability to gather and conserve resources from their environment. The transport of materials
More informationElements. Boiling Point. Help you identify a specific element
Section 1 * Lab * 2 wksts * Quiz Pure substance Only one type of particle Called Atoms Metals Nonmetals Elements Categories Boiling Point Help you identify a specific element Melting Point Characteristic
More informationWord of the Day for August 27, Definition - any property of a substance that must be observed during a chemical change.
Word of the Day for August 27, 2008 Chemical Property Definition - any property of a substance that must be observed during a chemical change. One chemical property of magnesium is that it will combine
More informationChapter 2. Section 1
Chapter 2 Section 1 Describing Matter Properties used to describe matter can be classified as extensive or intensive Extensive property - depends on the amount of matter in a sample. Ex. Mass and Volume
More informationMixtures, Solubility, and Acid/Base Solutions
Mixtures, Solubility, and Acid/Base Solutions Properties of Solutions Key Concepts Why do some substances dissolve in water and others do not? How do concentration and solubility differ? How can the solubility
More informationBiology Chapter 2: The Chemistry of Life. title 4 pictures, with color (black and white don t count!)
33 Biology Chapter 2: The Chemistry of Life title 4 pictures, with color (black and white don t count!) 34 Chapter 2: The Chemistry of Life Goals Highlight all unknown words 35-36 Chapter 2: The Chemistry
More informationThe Particulate Nature of Matter
Matter Objectives Learn about the composition of matter. Learn the difference between elements and compounds. Learn to distinguish between physical and chemical properties and changes. Learn to distinguish
More informationCopyrighted Material ~ All Rights Reserved Course Materials for NEHA-CERT Course SP0703 Page 1
Chlorine Generators Fact vs Fiction Presented by Marty Fisher Overview What is a Chlorine Generator? Liquid Chlorine Some Facts. How Salty is A Saltwater Pool? Types of Acceptable Salt. Saltwater Pool
More informationUniform properties throughout! SOLUTE(S) - component(s) of a solution present in small amounts.
54 SOLUTIONS - a SOLUTION is a HOMOGENEOUS MIXTURE. Uniform properties throughout! - parts of a solution: SOLUTE(S) - component(s) of a solution present in small amounts. SOLVENT - the component of a solution
More informationUnit 5 Lesson 2 Acids, Bases, and Salts. Copyright Houghton Mifflin Harcourt Publishing Company
Donations Accepted What are acids and bases? Acids and bases are chemicals that increase the number of ions present in a water solution when they dissolve. Lemon juice and vinegar both contain acid. Shampoo
More informationActivity 2 Elements and Their Properties
Activity 2 Elements and Their Properties Activity 2 Elements and Their Properties GOALS In this activity you will: Apply ancient definitions of elements to materials you believe are elements. Test some
More informationDOUBLE DISPLACEMENT REACTIONS. Double your pleasure, double your fun
DOUBLE DISPLACEMENT REACTIONS Double your pleasure, double your fun Industrial processes produce unwanted by-products. Dissolved toxic metal ions-copper, mercury, and cadmium-are common leftovers in the
More informationAcids, Alkalis and Carbonates
Acids, Alkalis and Carbonates Richard Harrison 2014 by pyro-gear.co.uk Chemistry is the study of how atoms of the various different elements interact. Fortunately they do interact, otherwise there would
More informationWhat is physical treatment? What is chemical treatment?
What is physical treatment? What is chemical treatment? Physical : having material existence and subject to the laws of nature. Chemical : any material used in, or produced by chemistry. Chemistry : is
More informationPhysical Science Lecture Notes Chapters 17, 18 & 19
Physical Science Lecture Notes Chapters 17, 18 & 19 I. 17-1: Matter & Its Changes a. Changes in matter i. Physical Changes Alters form or appearance but doesn t change it into another substance ie. Water
More informationCompound. Math Focus. What are compounds? What is a chemical reaction? How are compounds used in everyday life?
CHAPTER 3 2 Compounds SECTION Elements, Compounds, and Mixtures BEFORE YOU READ After you read this section, you should be able to answer these questions: What are compounds? What is a chemical reaction?
More informationNCFE Released Items. Correct Answer = D Number of protons = atomic number
Correct Answer = D Number of protons = atomic number Pa = 91 protons U = 92 protons Np = 93 protons Pu = 94 protons Info from Unit 3 Correct Answer = B Valence electrons are the electrons in the HOEL.
More informationWatts Scale Net Chemical Free, Salt Free, Maintenance Free Water Treatment
Watts Scale Net Chemical Free, Salt Free, Maintenance Free Water Treatment The Scale Net technology has an efficiency of 99.9% How does the chemical free water treatment technology work? You first have
More informationKITCHEN CHEMISTRY Identifying acids and bases with red cabbage indicator
KITCHEN CHEMISTRY Identifying acids and bases with red cabbage indicator By Darby Sloss and Marianne Smith Edited by Anne Starace Abstract Chemistry is an important part of our lives. Kitchen Chemistry
More informationPre-Lab Exercises Lab 3: Chemical Properties
Pre-Lab Exercises Lab 3: Chemical Properties 1. How is a chemical property different from a physical property? Name Date Section 2. How is a chemical change different from a physical change? 3. Give two
More informationYou don t have to look too deeply to see how chemistry affects your life.
Chapter 1: Page 0 Chapter 1: Page 1 You don t have to look too deeply to see how chemistry affects your life. Every breath you take, every meal you eat, everything has something to do with the interaction
More informationCE 370. Disinfection. Location in the Treatment Plant. After the water has been filtered, it is disinfected. Disinfection follows filtration.
CE 70 Disinfection 1 Location in the Treatment Plant After the water has been filtered, it is disinfected. Disinfection follows filtration. 1 Overview of the Process The purpose of disinfecting drinking
More informationSolutions Introduction
Solutions Introduction Outcomes: Describe and give examples of various types of solutions. Include: all nine possible types Describe the structure of water in terms of electronegativity and the polarity
More informationCHM 105 & 106 UNIT TWO, LECTURE EIGHT 1 IN OUR PREVIOUS LECTURE WE WERE LOOKING AT CONCENTRATION UNITS FOR SOLUTIONS
CHM 105 & 106 UNIT TWO, LECTURE EIGHT 1 CHM 105/106 Program 15: Unit 2 Lecture 8 IN OUR PREVIOUS LECTURE WE WERE LOOKING AT CONCENTRATION UNITS FOR SOLUTIONS AND WE HAD LOOKED AT PERCENT BY MASS AND PERCENT
More information3 Chemical Properties
CHAPTER 7 3 Chemical Properties SECTION The Properties of Matter BEFORE YOU READ After you read this section, you should be able to answer these questions: What are chemical properties of matter? What
More informationRemembering 1 List three types of models that are used in science. The Particle Model, Computer Models to simulate weather and models of newly shaped
Remembering 1 List three types of models that are used in science. The Particle Model, Computer Models to simulate weather and models of newly shaped wings. 2 List five different examples each of a solid,
More informationChemistry Unit 1: Section1 - Elements, Compounds, & Mixtures
Chemistry Unit 1: Section1 - Elements, Compounds, & Mixtures PURE SUBSTANCES A pure substance is called an element. An element is a pure substance because it cannot be separated into any other substances.
More information1.2 The Classification of Matter
b. not matter c. matter d. not matter e. matter f. matter 5. geophysics 7. Medicine is probably closer to a field of engineering than a field of science, but this may be arguable. Ask your doctor. 9. In
More informationREVIEW: ALL ABOUT MATTER. August 25, 2016
REVIEW: ALL ABOUT MATTER August 25, 2016 Review Questions: 08/25/2016 1. How is matter classified? 2. How can we tell the difference between different types of matter? 3. Write down 5 different types of
More informationSubstances and Mixtures:Separating a Mixture into Its Components
MiraCosta College Introductory Chemistry Laboratory Substances and Mixtures:Separating a Mixture into Its Components EXPERIMENTAL TASK To separate a mixture of calcium carbonate, iron and sodium chloride
More informationKS3 revision booklet chemistry
NAME KS3 revision booklet chemistry Use this booklet to help you revise the chemistry you have studied in Key Stage 3. There are quizzes you can use to test yourself, and diagrams to remind you of key
More information4 Energy and Rates of Chemical Reactions
CHAPTER 14 4 and Rates of Chemical Reactions SECTION Chemical Reactions BEFORE YOU READ After you read this section, you should be able to answer these questions: How is energy involved in a chemical reaction?
More informationExperiment 2 - Using Physical Properties to Identify an Unknown Liquid
Experiment 2 - Using Physical Properties to Identify an Unknown Liquid We usually think of chemists as scientists who do things with chemicals. We can picture a chemist's laboratory with rows of bottles
More informationActivity Sheet Transferring thermal energy by dissolving salts
Student Name: Date: Activity Sheet Transferring thermal energy by dissolving salts 1) Define Thermal energy and temperature in the boxes below. Thermal Energy Temperature Practice Experiment: Aim: To practice
More informationCLASS COPY Structure and Properties of Matter Parts of the atom
CLASS COPY Structure and Properties of Matter Parts of the atom An atom is made up of protons, neutrons, and electrons. Look at the model of a carbon atom from the graphite in the point of a pencil. Protons
More informationClassification of Matter
Matter in Chemistry Classification of Matter Elements: substances that are made from one type of atom only. Compounds: substances that are made from more than one type of atom chemically bonded together.
More informationReview # 3 Matter. Copyright Cengage Learning. All rights reserved. 3 1
Review # 3 Matter Copyright Cengage Learning. All rights reserved. 3 1 What are the three states of matter? 1. solid, liquid, and gas 2. solid, liquid, and plasma 3. solid, glass, and compounds 4. compounds,
More information1/31/2013 CHEMICAL EQUATIONS & REACTIONS NOTES. Write the formulas of the following compounds: 1. nickel (II) chloride. 2. copper (II) nitrate
CEMICAL EQUATIONS & REACTIONS NOTES Ionic compounds can form from metals Transition metals do not always follow the patterns that we discussed Can have more than one oxidation number () To identify the
More informationToday is Thursday, September 7 th, 2017
In This Lesson: Unit 1 Matter and Change (Lesson 1 of 6) Today is Thursday, September 7 th, 2017 Pre-Class: Identify the chemistry in this scene (and I don t mean between the people). Hint: There are chemical
More informationCHAPTER 1: Chemistry, An Introduction
CHAPTER 1: Chemistry, An Introduction science: the study of nature to explain what one observes 1.4 THE SCIENTIFIC METHOD: How Chemists Think Applying the Scientific Method 1. Make an observation, and
More informationUniform properties throughout! SOLUTE(S) - component(s) of a solution present in small amounts.
54 SOLUTIONS - a SOLUTION is a HOMOGENEOUS MIXTURE. Uniform properties throughout! - parts of a solution: SOLUTE(S) - component(s) of a solution present in small amounts. SOLVENT - the component of a solution
More informationNanoscale Materials and Their Properties Teacher Guide Unit 2: Metallic and Ionic Nanoparticle
Nanoscale Materials and Their Properties Teacher Guide Unit 2: Metallic and Ionic Nanoparticles: Extendable Structures Objectives for Metallic and Ionic Nanoparticles: Extendable Structures Lesson Objectives:
More informationTYPES OF CATALYSIS Reading Supplement
TYPES OF CATALYSIS Reading Supplement This page looks at the the different types of catalyst (heterogeneous and homogeneous) with examples of each kind, and explanations of how they work. You will also
More informationVocabulary. Chapter 22: Mixtures
Name: Date: Hour: Vocabulary Chapter 22: Mixtures Read the following passage carefully and use context clues to determine the meaning of the underlined words. Italicized words may be unfamiliar as well-
More information- Double replacement reactions that form water are also called "neutralizations"
119 ACID/BASE REACTIONS (also called NEUTRALIZATION REACTIONS) - There are several stable molecules that may be formed in double replacement reactions, but the most common is WATER! - Double replacement
More informationChromatography & instrumentation in Organic Chemistry
Chromatography & instrumentation in Organic Chemistry What is Chromatography? Chromatography is a technique for separating mixtures into their components in order to analyze, identify, purify, and/or quantify
More informationMatter, mass, and volume are related.
Suppose you had all of the parts needed to make an at home aquarium: a tank, water, rocks, plants, and some fish. To put the aquarium together, you would need to arrange the rocks and plants in the tank.
More informationProperties of Atoms Watch: http://www.khanacademy.org/science/chemistry/introduction-to-theatom/v/introduction-to-the-atom Write down and define the following vocabulary words (you may use ch. 2.1 of your
More informationAdsorption of Humic acid on Powdered Activated Carbon (PAC)
Adsorption of Humic acid on Powdered Activated Carbon (PAC) Department of Civil and Environmental Engineering, MSU, East Lansing, MI, 48824, USA Abstract Removal capacity and rate of Humic Acid (HA) onto
More informationChapter 12 Stoichiometry. Mr. Mole
Chapter 12 Stoichiometry Mr. Mole Let s make some Cookies! When baking cookies, a recipe is usually used, telling the exact amount of each ingredient. If you need more, you can double or triple the amount
More informationAtoms, Molecules, Pure Substances, and Mixtures Activity How do atoms combine to make different types of matter?
Atoms, Molecules, Pure Substances, and Mixtures Activity How do atoms combine to make different types of matter? Background: Everything is made of matter. Anything you touch, see, taste, or smell even
More informationUniform properties throughout! SOLUTE(S) - component(s) of a solution present in small amounts.
54 SOLUTIONS - a SOLUTION is a HOMOGENEOUS MIXTURE. Uniform properties throughout! - parts of a solution: SOLUTE(S) - component(s) of a solution present in small amounts. SOLVENT - the component of a solution
More informationScience Is A Verb! Elementary. Part 2 LET S DO IT! ISBN
LET S DO IT! Science Is A Verb! Elementary Part 2 ISBN 978-1-847003-58-4 Contents INTRODUCTION Lab Title What Happens When Steel Rusts? Students know that during chemical reactions the atoms in the reactants
More information3. Natural gas burns in a bunsen burner. (a) What happens to the temperature of the flame when the air hole is opened. (b) Explain your answer.
Rate of reactions 1. Different chemical reactions happen at different speeds. (a) Give an example of a reaction in the lab that (i) is almost instantaneous, (ii) takes a few minutes to finish. (b) List
More informationWhat is Matter? Matter is anything that has mass and volume.
MATTER What is Matter? Matter is anything that has mass and volume. There are 3 States of Matter: Across the top of your notes write 1. SOLID 2. LIQUID 3. GAS SOLIDS hold their shape have definite volume
More informationStudent Name: Teacher: Date: Test: 9_12 Agriculture AP41 - Horticulture I Test 2 Description: Pest Management District: Wake County Form: 501
Student Name: Teacher: Date: Test: 9_12 Agriculture AP41 - Horticulture I Test 2 Description: Pest Management District: Wake County Form: 501 1. Aimee uses traps in her garden to: 2. Which is MOST true
More informationQuartz, salt, and sugar are all compounds that are solids. Their similarities and differences partly come from the way their atoms or ions are
Quartz, salt, and sugar are all compounds that are solids. Their similarities and differences partly come from the way their atoms or ions are joined. A compound is made of two or more elements that are
More informationChemistry: The Science of Matter CHAPTER
Reviewing Vocabulary Choose from the terms below to complete each statement. alloy element mass quantitative aqueous solutions endothermic matter scientific model chemical change energy mixture solute
More informationBased on the work you have completed in S1 to S3, complete Prior Learning 3.1.
3.2: Metals In this chapter you will learn about the structure of pure metals, alloys and how they react with other substances. You will develop skills in the correct use of the SQA data booklet to create
More informationScience Grade 5 Chapter 5: Comparing Kinds of Matter Lesson2: Elements
Element: is a material that cannot be broken down into anything simpler by chemical reactions. o There are 118 elements o Most elements are solids, some are gasses and few are liquid at room temperature
More informationChemical Bonds. Stability in Bonding. Before You Read. Read to Learn
chapter 18 Chemical Bonds section 1 Stability in Bonding What You ll Learn about elements in a compound chemical formulas how electric forces help form compounds why a chemical bond forms Before You Read
More informationChapter 3 Matter and Energy
Introductory Chemistry, 3 rd Edition Nivaldo Tro Matter and Energy The chapter opening (page 52) showing a room and highlighting the structure of water and the carbon atoms in a graphite tennis racket
More informationChemistry Matter Unit. What is matter? What is chemistry? What is the organization of matter? What is the nature of matter?
Chemistry Matter Unit What is matter? What is chemistry? What is the organization of matter? What is the nature of matter? What is NOT Matter? Energy! Types of Energies Mechanical Chemical Heat Atomic
More information