106 5 th 6 Weeks Test Review 107 Objectives 2 and 4 Review 108 Punnett Square Practice 109 Objectives 3 and 5 Review 110 5 th 6 Weeks Test Please DO NOW Todays Schedule ID: 698438
Download Presentation The PPT/PDF document "April 24 , 2011 Update your table of c..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
April
24, 2011
Update your table of contents
:
106. 5
th 6 Weeks Test Review107. Objectives 2 and 4 Review108. Punnett Square Practice109. Objectives 3 and 5 Review110. 5th 6 Weeks Test
Please DO NOW Slide2
Today’s
Schedule
Agenda:Comp Book Update
Obj 3 and 5 Station RecapWhiteboard ReviewTAKS Review Booklet
Essential Questions
What do I need to know for the TAKS test?Homework: Complete TAKS booklet April 24, 2011Announcement: TAKS test is Thursday! Come to tutoring for help finishing TAKS booklet. Slide3
April
24, 2011
To complete TAKS Review Booklet:
For each objective include AT LEAST 10 facts.
Facts may include sentences, formulas, labeled pictures, diagrams, or definitions.
The Review Booklet will be a major grade and is due on Thursday.Come to tutoring to use the study guide to find additional facts!TAKS Review Booklet - PreAPSlide4
April
24, 2011
To complete TAKS Review Booklet:
For each objective include AT LEAST 5 facts.
Facts may include sentences, formulas, labeled pictures, diagrams, or definitions.
The Review Booklet will be a major grade and is due on Thursday.Come to tutoring to use the study guide to find additional facts!TAKS Review Booklet - GLSlide5
Elements, Compounds, and Chemical EquationsCounting Atoms and Balancing EquationsSlide6
Counting Subatomic Particles:Use the periodic table
The atomic number is the same as the number of protons. The number of protons is the same as the number of electrons
.The mass number is the protons added to the neutrons.
Atomic Number = Protons = Electrons (APE)Mass Number = Protons + NeutronsNeutrons = Mass Number - ProtonsSlide7
Counting Subatomic Particles:Find the number of protons, neutrons, and electrons in:
LithiumAtomic Number = Protons = Electrons (APE)Mass Number = Protons + NeutronsNeutrons = Mass Number - ProtonsSlide8
Counting Subatomic Particles:Find the number of protons, neutrons, and electrons in:
LithiumAtomic Number = 3 Mass Number = 7 Protons = 3Neutrons = 4Electrons = 3Slide9
Counting Subatomic Particles:Find the number of protons, neutrons, and electrons in:
GoldAtomic Number = Protons = Electrons (APE)Mass Number = Protons + NeutronsNeutrons = Mass Number - ProtonsSlide10
Counting Subatomic Particles:Find the number of protons, neutrons, and electrons in:
ArgonSlide11
Counting Subatomic Particles:Find the number of protons, neutrons, and electrons in:
LeadSlide12
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
Subscripts describe the number of that type of atom. They appear after the element symbol, are small, and written hanging below the symbol.Coefficients describe the number of molecules present. Coefficients apply to all elements in the molecule. They are written before the formula for the molecule and are large.Slide13
4H2O
Coefficient: There are 4 molecules of water.
Subscript: There are
2 atoms of Hydrogen in each water molecule.Slide14
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
Subscripts describe the number of that type of atom. They appear after the element symbol, are small, and written hanging below the symbol.Coefficients describe the number of molecules present. Coefficients apply to all elements in the molecule. They are written before the formula for the molecule and are large.H
2O = 2 hydrogen and 1 OxygenSlide15
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
Subscripts describe the number of that type of atom. They appear after the element symbol, are small, and written hanging below the symbol.Coefficients describe the number of molecules present. Coefficients apply to all elements in the molecule. They are written before the formula for the molecule and are large.3H
2O = 6 Hydrogen and 3 OxygenSlide16
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
Count and Draw the atoms in the molecule.NH4Slide17
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
Count and Draw the atoms in the molecule.NH4
N = Nitrogen = 1
H = Hydrogen = 4Slide18
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
Count and Draw the atoms in the molecule.2NH4Slide19
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
Count and Draw the atoms in the molecule.NH4Slide20
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
Count the atoms present:C6H12O6Slide21
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
C6H12O6Carbon – C – 6Hydrogen – H – 12
Oxygen – O – 6Slide22
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
3C6H12O6Slide23
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
3C6H12O6Carbon – C – 6 x 3 = 18Hydrogen – H – 12 x 3 = 36
Oxygen – O – 6 x 3 = 18Slide24
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
2NaC2H3O2Slide25
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
2NaC2H3O2Sodium - Na – 1 x 2 = 2
Carbon – C – 2 x 2 = 4Hydrogen – H – 3 x 2 = 6Oxygen – O
– 2 x 2 = 4Slide26
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
KNO3Slide27
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
4KNO3Slide28
3. Balancing Equations: Count the atoms in the reactants and the products.
Count the total number of each type of atom on the reactant (ingredient) side.Count the total number of each type of atom in the product (what you make) sideIf the number of each type of atom matches, the equation is balanced. If the numbers do not match the equation is not balanced.
Equations must be balanced to show that the same atoms that go into a reaction are the atoms that come out, THEY ARE JUST REARRANGED to make new substances.Slide29
3. Balancing Equations: Count the atoms in the reactants and the products.
2Cu + O2 2CuO
Reactants
ElementProductsCopperOxygenSlide30
3. Balancing Equations: Count the atoms in the reactants and the products.
2Cu + O2 2CuO
The Equation is Balanced!!!
ReactantsElementProducts
2Copper2
2Oxygen2Slide31
3. Balancing Equations: Count the atoms in the reactants and the products.
2H2O 3H2 + O2
Reactants
ElementProductsHydrogen
OxygenSlide32
3. Balancing Equations: Count the atoms in the reactants and the products.
2H2O 3H2 + O2
Reactants
ElementProducts4Hydrogen
62
Oxygen2Slide33
3. Balancing Equations: Count the atoms in the reactants and the products.
3Fe + 4H2O 4H2 + Fe3
O4
ReactantsElementProducts
Iron
HydrogenOxygenSlide34
3. Balancing Equations: Count the atoms in the reactants and the products.
3Fe + 4H2O 4H2 + Fe3
O4
ReactantsElementProducts
3Iron3
8Hydrogen84Oxygen4Slide35
3. Balancing Equations: Count the atoms in the reactants and the products.
2Fe2O3 + 3H2 2Fe + 3H
2O
ReactantsElementProducts
Iron
OxygenHydrogenSlide36
3. Balancing Equations: Count the atoms in the reactants and the products.
CaCO3 CaO + CO2
Reactants
ElementProductsCalcium
Carbon
OxygenSlide37
3. Balancing Equations: Count the atoms in the reactants and the products.
2NaCl 2Na + Cl2
Reactants
ElementProductsSlide38
3. Balancing Equations: Count the atoms in the reactants and the products.
CH4 + 2O2 CO2 + 2H
2OSlide39
3. Balancing Equations: Count the atoms in the reactants and the products.
C5H12 + 6O2 5CO
2 + 6H2OSlide40
2. Counting Atoms in Chemical Formulas: Examine the subscripts and coefficients
C6H12O6