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Write the Learning Target. Warm Up: 4 Minutes. Stay in your own seat. You should be working SILENTLY. Hint: Periodic Table and your naming sheet. DO NOT MOVE THE COMPUTERS. Log into your computer Go to m.socrative.com Enter r oom number: 230538 Finish all questions

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Warm up 4 minutes

Write the Learning Target

Warm Up: 4 Minutes

Stay in your own seat

You should be working SILENTLY

Hint: Periodic Table and your naming sheet

DO NOT MOVE THE COMPUTERS

  • Log into your computer

  • Go to m.socrative.com

  • Enter room number: 230538

  • Finish all questions

  • When you are finished, check your grades on PS Connect


  • Directions
    Directions

    Go to Nearpod.com

    Click “JOIN SESSION”

    I will give you the code as soon as everyone is ready


    Agenda
    Agenda

    Warm Up- 7 Minutes

    Cornell Style Notes & Examples- 15 Minutes

    Guided Practice-11 Minutes

    Independent Practice- 17 Minutes

    Closing – 3 Minutes


    Goal for today
    Goal For Today

    Calcium Chloride

    CaCl2

    Student Given:

    Student Answer:


    Chemical formula
    Chemical Formula

    must include:

    1. Correct Symbol for Element or Polyatomic

    Ion

    2. Correct Subscript

    CaCl2

    Exception: If there is one of an element, then a

    subscript is not needed.


    How to write chemical formulas for ionic compounds
    HOW TO WRITE CHEMICAL FORMULAS FOR IONIC COMPOUNDS?

    Step 1

    Write the symbol and oxidation number (charge) for the cation

    [oxidation number to be written as a superscript]

    Ca+2

    Example

    Calcium Chloride


    How to write chemical formulas for ionic compounds1
    HOW TO WRITE CHEMICAL FORMULAS FOR IONIC COMPOUNDS?

    Step 2

    Write the symbol and oxidation number (charge) for the anion

    [oxidation number to be written as a superscript]

    Cl-1

    Example

    Calcium Chloride


    How to write chemical formulas for ionic compounds2
    HOW TO WRITE CHEMICAL FORMULAS FOR IONIC COMPOUNDS?

    Step 3

    Use the criss-cross rule to write

    formula with the correct

    subscripts.

    Ca+2 Cl-1

    Example

    Calcium Chloride

    CaCl2



    Example 1
    Example 1:

    Rubidium Sulfate


    Example 2
    Example 2:

    Chromium (III) Oxide


    Example 3
    Example 3:

    Magnesium Hydroxide


    Example 4
    Example 4:

    Strontium Phosphate


    Guided practice
    Guided Practice

    • Teacher:

      1. Will show the problem on the board

    • Students:

      • Take 16 seconds to write the components on paper, identifying oxidation numbers.

      • Take 33 seconds to speak with your shoulder partner to compose the formula for the compound

      • Be ready to share the name of the compound when Mr. Ghosh says SWAG


    We do
    We Do

    • Beryllium Selenide

      BeSe


    We do1
    We Do

    • Copper (II) Nitrate

      Cu(NO3)2


    We do2
    We Do

    • Silver(I) Phosphide

      Ag3P


    We do3
    We Do

    • Potassium Sulfate

      K2 SO4


    Practice makes perfect
    Practice Makes Perfect

    85%

    By completing this worksheet INDEPENDENTLY, it will help us to perfect the skill of writing chemical formulas of ionic compounds.


    Answer key
    Answer Key

    CaBr2

    FeO

    KI

    CoNO3

    Fe2S3

    CuCl2

    Rb2S

    BaSO4

    KMnO4

    Ni(NO3)2

    V3(PO4)2

    Mn2(Cr2O7)5

    Al(SO3)3

    PbS2

    HgF

    RaS

    Be3N2

    CsCl

    Os(HCO3)3

    LiOH


    Closing
    Closing

    • What is the process for composing the chemical formula of an ionic compound?

      Tomorrow we will talk about composing the chemical formulas of covalent compounds


    Warm up 4 minutes1
    Warm Up: 4 Minutes

    Hint: What rule do we use for ionic compounds?

    Stay in your own seat

    DO NOT MOVE THE COMPUTERS

    • Log into your computer

    • Go to m.socrative.com

    • Enter room number: 230538

    • Finish all questions

  • When you are finished, check your grades on PS Connect


  • Warm up 4 minutes2

    Write the Learning Target

    Warm Up: 4 Minutes

    Stay in your own seat

    You should be working SILENTLY

    Hint: Periodic Table


    Directions1
    Directions

    Go to Nearpod.com

    Click “JOIN SESSION”

    I will give you the code as soon as everyone is ready

    Your PIN:


    Agenda1
    Agenda

    Warm Up- 7 Minutes

    Cornell Style Notes & Examples- 13 Minutes

    Guided Practice- 10 Minutes

    Independent Practice- 12 Minutes

    Closing – 3 Minutes


    What about Trioxygen Disulfide???

    Is this compound ionic or covalent?


    How to write the chemical formula of a covalent compound
    HOW TO WRITE THE CHEMICAL FORMULA OF A COVALENT COMPOUND?

    Trioxygen Disulfide

    Step 1

    Make sure the name uses prefixes to ensure the compound is covalent.

    Example


    HOW TO WRITE THE CHEMICAL FORMULA OF A COVALENT COMPOUND?

    Trioxygen Disulfide

    Step 2

    Write the correct chemical symbol of the first element

    O

    Example


    How to write the chemical formula of a covalent compound1
    HOW TO WRITE THE CHEMICAL FORMULA OF A COVALENT COMPOUND?

    Trioxygen Disulfide

    Step 3

    Write the correct chemical symbol of the second element

    S

    Example


    How to write the chemical formula of a covalent compound2
    HOW TO WRITE THE CHEMICAL FORMULA OF A COVALENT COMPOUND?

    Trioxygen Disulfide

    Step 4

    Use prefixes to write the correct subscripts

    O3S2

    Example


    Example 11
    Example 1

    DisulfurHexafluoride


    Example 21
    Example 2

    TriphosphorusTetroxide


    Example 31
    Example 3

    Sulfur Hexabromide


    Guided practice1
    Guided Practice

    • Teacher:

      1. Will show the problem on the board

    • Students:

      • Take 16 seconds to write the components on paper

      • Take 33 seconds to speak with your shoulder partner to compose the formula for the compound

      • Be ready to share the name of the compound when Mr. Ghosh says SWAG


    We do4
    We Do

    DinitrogenTetrahydride


    We do5
    We Do

    TrisulfurOctabromide


    We Do

    Sulfur Dibromide


    We do6
    We Do

    Cobalt (II) Chloride


    Practice makes perfect1
    Practice Makes Perfect

    85%

    By completing this worksheet INDEPENDENTLY, it will help us to perfect the skill of writing chemical formulas of covalent compounds.


    Answer key1
    Answer Key

    LiBr

    S3P4

    KNO3

    OCl

    FeI3

    CuCl

    SF6

    Ba(MnO4)2

    Ga2(Cr2O7)3

    CBr2

    V2(CO3)3

    Br2F9

    C7N10

    Na2O

    NO

    Mn2(Cr2O7)5

    XeF2

    SO2

    Ir(HCO3)7

    AsC8


    Closing1
    Closing

    • What is the process for composing the chemical formula of an covalent compound?

    • How is this different from the formula of an ionic compound?


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