Bell Work 11-13-14

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Bell Work 11-13-14
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Bell Work Answer
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Student Learning Objectives

• SPI0807.9.3 Classify common substances as
  elements or compounds based on their symbols or
  formulas.
• SPI0807.9.4 Differentiate between a mixture and a
  compound.
• SPI0807.9.5 Describe the chemical make-up of the
  atmosphere.
• TOC
• 58. Elements Compounds Foldable

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Study Jams!Elements and Compounds!
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Elements Compounds Foldable
Elements
Compounds
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SPI 0807.9.3 Elements and Compounds

• What Is An Element?
• a substance that CANNOT be broken down into
  a simpler substance by CHEMICAL means.
• In other wordsyou CANNOT change one element
  into a different element with a chemical reaction
• Each individual element is a unique particle
  called an atom
• So in other words elements are the different
  types of atoms

Example Lithium is an element. Here is one
lithium atom
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More about Elements!

• More About Elements
• Elements chemical symbols always start with one
  capital letter
• Can be followed by one or more lower case letters
• Examples
• H the element hydrogen
• represents one hydrogen atom
• Na the element sodium
• represents one sodium atom
• Uubthe element ununbium
• represents one ununbium atom

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Compounds

• Compounds are pure substances composed of two or
  more elements that have been chemically combined.
  
• Each compound has a unique set of physical and
  chemical properties that are different elements
  used to make the compounds.
• Elements must combine at specific mass ratios.
• Compounds can be broken down using chemical
  needs.
• Electrolysis- sends electric current through
  compounds.
• Chemical forces- are forces caused by other
  compounds or molecules that act on substances.
• Examples
• NaCl (Table Salt)
• CO2 (Carbon dioxide)
• C6H12O6 (Glucose)

SODIUM AND CHLORINE
CARBON AND OXYGEN
CARBON, HYDROGEN, OXYGEN
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More About Compounds

• Formulas for compounds will always contain more
  than one capital letter.
• This is how you can tell the difference between
  an element and a compound count the number of
  capital letters!
• Examples
• H2O
• This is the compound called water
• C12H22O11
• This the compound called table sugar
• CH3COOH
• This is the compound called vinegar

is a compound for it has more than 1 capital
letter
is a compound for it has more than 1 capital
letter
is a compound for it has more than 1 capital
letter
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Review Activity
Is this an element or a compound? Write a capital
E if you think it is an element Write a capital C
if you think it is a compound Cs (Cesium) Why?..
.is a pure substance, consists of only one type
of atom How to tell?...It only has one capital
letter!
Element
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Review Activity
Is this an element or a compound? Write a capital
E if you think it is an element Write a capital C
if you think it is a compound NaCl (Sodium
Chloride) Why?... has two atoms chemically bonded
together How to tell?...It has more than one
capital letter!
Compound
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Review Activity
Is this an element or a compound? Write a capital
E if you think it is an element Write a capital C
if you think it is a compound Fe (Iron) Why?...i
s a pure substance, consists of only one type of
atom How to tell?...It only has one capital
letter!
Element
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Review Activity
Is this an element or a compound? Write a capital
E if you think it is an element Write a capital C
if you think it is a compound MgCl2 (Magnesium
Chloride) Why?... has two atoms chemically bonded
together How to tell?...It has more than one
capital letter!
Compound
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Exit Ticket
Elements
Compounds
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Bell Work 11-14-14
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Bell Work Answer
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Student Learning Objectives

• SPI0807.9.3 Classify common substances as
  elements or compounds based on their symbols or
  formulas.
• SPI0807.9.4 Differentiate between a mixture and a
  compound.
• SPI0807.9.5 Describe the chemical make-up of the
  atmosphere.
• TOC
• 59. Mixtures Notes
• 60. Element or Compounds?

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Word Wall Quiz 11/14/14

• ____a bond formed by the attraction between
  positively charged metal ions and the electrons
  around the
• ____the regular pattern in which a crystal is
  made
• ____the combining of atoms to form molecules or
  ionic compounds
• ____a bond that forms when electrons are
  transferred from one atom to another atom
• ____a bond formed when atoms share one or more
  pairs of electrons
• A. Covalent Bond B. Crystal Lattice
  
• C. Ionic Bond D. Chemical Bonding
• E. Metallic Bond

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Word Wall Quiz 11/14/14

• ____a bond formed by the attraction between
  positively charged metal ions and the electrons
  around the
• ____the regular pattern in which a crystal is
  made
• ____the combining of atoms to form molecules or
  ionic compounds
• ____a bond that forms when electrons are
  transferred from one atom to another atom
• ____a bond formed when atoms share one or more
  pairs of electrons
• A. Covalent Bond B. Crystal Lattice
  
• C. Ionic Bond D. Chemical Bonding
• E. Metallic Bond

E
B
D
C
A
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Study Jams!
Mixtures
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SPI 0807.9.4 Mixtures Notes

• What is a Mixture?
• When you combine two or more substances together,
  if no chemical reaction occurs then it is called
  a mixture
• NOTE A mixture may contain 1 or more compounds,
  as long as they do not react with each other
• (like Koolaidsee example below)
• MIXTURE EXAMPLES
• Koolaid
• Pizza

When you combine water (a compound) and Koolaid
powder (sugar, flavoring, coloring) these items
do not chemically react with each other.
When you combine cheese, tomato sauce, and dough,
these items do not chemically react with each
other.
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SPI 0807.9.4 Mixtures or Compounds

• More About Mixtures
• Any changes you observe in a mixture are only
  physical changesno new substances are formed.
• Mixtures can be fairly easily separated back
  into the individual ingredients
• More Mixture Examples
• Red Bull
• is merely a combination of water and other
  ingredients
• Air
• is merely a combination of nitrogen, oxygen,
  other gases
• Steel
• is merely a combination of iron and carbon

No chemical reaction occurs
No chemical reaction occurs
No chemical reaction occurs
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SPI 0807.9.4 Mixtures Notes

• What Is A mixture?
• a combination of two or more substances that
  ARE NOT
• chemically combined
• No chemical reaction occurs!
• Unlike a compound
• a mixture can be
  fairly easily taken back apart
• EXAMPLES
• Soup, Soft drinks (Coke, Pepsi, etc.), Tea,
  Hamburgers, Koolaid Drinks, pizza, etc

No smoke
No fizzing or foaming
No explosion
No explosion
No fizzing or foaming
No precipitate is formed
No heat or light given off
No precipitate is formed
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SPI 0807.9.4 Mixtures Notes

• Key Point About Mixtures
• Mixtures can be fairly easily taken back apart
• No chemical reaction occurs!
• No smoke
• More Mixture Examples
• Soup, Soft drinks (Coke, Pepsi, etc.), Tea,
  Salads, Soil (dirt), Perfume, Cologne, Bronze, etc

No smoke
No explosion
No fizzing or foaming
No precipitate is formed
No heat or light given off
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SPI 0807.9.4 Mixtures or Compounds

• What Is a Compound?
• is made up of atoms of two or more different
  elements that are chemically bonded via a
  chemical reaction.
• More Compound Examples
• Water (Hydrogen Oxide)
• Battery Acid (Hydrogen Sulfate)
• Table Salt (Sodium Chloride)
• Table Sugar (Sucrose)
• Rust (Iron Oxide)
• Chalk (Calcium Carbonate)

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Review Activity
Is this an element, compound, or mixture? Write a
capital E if you think it is an element Write a
capital C if you think it is a compound Write a
capital M if you think it is a mixture Ar
(Argon) Why?...is a pure substance, consists
of only one type of atom
Element
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Review Activity
Is this an element, compound, or mixture? Write a
capital E if you think it is an element Write a
capital C if you think it is a compound Write a
capital M if you think it is a mixture
Monster Energy Drink Whyingredients DO NOT
chemically combine Ingredients Water, sugar,
coloring, and flavor
Mixture
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Review Activity
Is this an element, compound, or mixture? Write a
capital E if you think it is an element Write a
capital C if you think it is a compound Write a
capital M if you think it is a mixture C6H12O6 (
Glucose) Why?...has 3 atoms chemically bonded
together
Compound
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Review Activity
Is this an element, compound, or mixture? Write a
capital E if you think it is an element Write a
capital C if you think it is a compound Write a
capital M if you think it is a mixture Chicken
Soup Whyingredients DO NOT chemically combine
Ingredients Water, chicken, vegetable, noodles,
salt, etc.
Mixture
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Review Activity
Is this an element, compound, or mixture? Write a
capital E if you think it is an element Write a
capital C if you think it is a compound Write a
capital M if you think it is a mixture CO2 (Carb
on Dioxide) Why?...has 2 atoms chemically bonded
together
Compound
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Review Activity
Is this an element, compound, or mixture? Write a
capital E if you think it is an element Write a
capital C if you think it is a compound Write a
capital M if you think it is a mixture Uut
(Ununtrium) Why?...is a pure substance,
consists of only one type of atom
Element
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Elements or Compounds?

• CW grade- Complete the Elements or Compounds
  handout for a grade. We will grade it at the
  beginning of class Monday. Make sure to use your
  Periodic Table!

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Exit Ticket

• Elements Compounds
• Mixtures