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ISN IV: Bonding Chemicals # Item Check INCheck IN Value Lost
Text Pages 119-129 4
3-7 Circle Graph/Rockets’ Red Glare/Notes 4
8 Lab: ionic Bonding Chips 10
Text Pages 130-135 4
9-10 LAB: IONIC COMPOUNDS SAMPLER 21
Text Pages 136-7 2
11 Review of Ionic Bonding
12-14 Types of Bonding /Electron Dot Diagrams no check for thisno check for thisno check for thisno check for this
Text 138-142 4
15-16 LAB: MOLECULAR MODELS 20
17 Review of Matter 2
Online Household Chemicals 6
18-19 LAB: CHROMATOGRAPHY 12
Text 143-145 2
20 DEMO: DECOMPOSITION OF SUGAR 6
21 Photons 2
Text 146-147 2
Text 148-151 2
22 Formula & Names Review 2
25-27 Mind Map(5pt) & Outside Reading(10 pt) 15
Parent signature and Date 4
TotalTotalTotal 124
1
Parent signature ___________________________________date_______________
Updated Things 2 Know1. SAFETY FIRST!!
2. You are required to have a pencil or erasable pen, ISN with cover, and calculator everyday.
3. Any missed labs or in class work should be made up during lunch or X-Block or tutorial
4. Sato’s email address: [email protected]
5. Sato’s web site: www1.northbrook28.net/~asato
6. Matter is anything with mass and volume
7. Matter is made of tiny particles that are always in some motion.
8. Matter can exist in several states(or phases), the most common are solid, liquid, gas and plasma.
9. Temperature is how fast the particles are vibrating
10.Matter can be described by physical and chemical properties
11.The Metric System is used to measure matter. Some common measurements are length, mass, volume and density.
12.An element is the most basic type of matter that is still unique.
13.Atoms are composed of protons, neutrons and electrons.
14.The number of protons(atomic number) determines the identity of an element
15.Matter is described my its physical and chemical properties.
16.The periodic table is organized on several levels, including by: atomic number, electron arrangement, and similar properties.
2
Circle Graph(aka PIE Chart) for text 119
The Rockets’ Red GlareThe basic fireworks unit is called a shell,and it is packed with chemicals that produce light, smoke, and noise when they burn. The effects depend on which chemicals are packed into the shell and how they are arranged.
A simple shell is shown at the right. When the gunpowder is at the bottom of the shell is lit, it explodes and lifts the shell into the air. By the time the shell has reached the high point of its path, a second fuse ignites the other chemicals. Some shells explode all at once. Others are made of smaller shells that burst apart and explode separately. Time delays can be used to make a shell explode in stages.
The table below lists some chemicals and the effects they produce.
1.Which groups of the periodic table do the majority of the elements listed in the table above belong to?
2.Why do you think elements in these groups are used in making fireworks?
3.Which group of elements could you not use in making fireworks?
4.Why would you want to have two or more separate fuses in a rocket?
Element Effectstrontium or lithium red color
barium green color
copper blue color
sodium yellow color
magnesium or aluminum white color
potassium or sodium whistling sound
potassium and sulfur white smoke
3
SatoVision Productionspresents
1 1
Bobby Blue & PinkyA special bond
22
Bobby Blue• Meet Bobby Blue.
• He is a sad boy.
• His favorite
thing in life is to
look good,
• but his outfit is
missing a
sleeve...
• Poor Bobby
33
Pinky• Meet Pinky.
• She is a sad girl.
• Her favorite
thing in life is
to look good,
• but she has a
mismatched
sleeve...
• Poor Pinky
4 4
The Meeting
One day Bobby Blue and Pinky
meet up at their friend
Ellie Mint’s Party
5 5
Pinky’s Big Idea
Pinky has a great idea!
66
Pinky’s Big Idea
Bob, take my blue
sleeve!OK Pinky!
77
The Exchange
88
4
Underneath it All
• Hey! I had a
complete
outfit just
under the
surface!
•
99
Sweet Threads
• And Now my
outfit is the
bomb!
1010
Magnetic Attraction
• You and I are
opposites but....• I am really
attracted to you
• And I am attracted
to you!
11 11
The Happy Compound
The End
12 12
5
NOTES
6
Positive and Negative Ions List
Diatomic Molecules: H2 O2 I2 N2 Cl2 F2 Br2
Positive 1+
Potassium KLithium LiSilver AgSodium NaCopper (I) CuMercury(I) HgHydrogen HCesium CsAmmonium NH4
Hydronium H3O
Positive 2+
Barium BaBeryllium BeCadmium CdCalcium CaCobalt(II) CoCopper(II) CuIron(II) FeLead(II) PbMagnesium MgMercury(II) HgNickel(II) NiStrontium SrTin(II) SnZinc Zn
Positive 3+
Aluminum AlChromium(III) CrIron(III) FeBoron B
Positive 4+
Tin(IV) SnManganese Mn
Negative 1-
Acetate C2H3O2Bicarbonate HCO3Bisulfate HSO4Bromide BrChloride ClChlorate ClO3Chlorite ClO2Cyanide CNFluoride FHydroxide OHHydride HIodide INitrate NO3Nitrite NO2Permanganate MnO4
Negative 2-
Carbonate CO3
Chromate CrO4
Dichromate Cr2O7
Oxide OSulfate SO4
Sulfide S
Negative 3-
Nitride NPhosphate PO4
7
Lab: Ionic Bonding Chips Write the chemical formula for each compound:1. potassium hydroxide ___________________
2. potassium chloride _____________________
3. potassium oxide _____________________
4. potassium sulfate___________________
5. potassium nitride_____________________
6. potassium phosphate___________________
7. sodium hydroxide _____________________
8. sodium chloride _____________________
9. sodium oxide_____________________
10. sodium sulfate_____________________
11. sodium nitride_____________________
12. sodium phosphate_____________________
13. calcium hydroxide_____________________
14. calcium chloride_____________________
15. calcium oxide_____________________
16. water* _____________________
17. iron (II) hydroxide_____________________
18. iron (III) hydroxide_____________________
19. aluminum oxide_____________________
20. hydrochloric acid*___________________
*These are not ionic compounds, but make anyway.
8
LAB: Ionic Compounds SamplerGalileo
1.Describe copper(II) sulfate:
Name and Describe each of the three elements that make up copper sulfate(HINT: look up sulfate on the IONS LIST on ISN page 7)2.
3.
4.
5. What is the formula for copper(II) sulfate?________________________Curie
6. Describe ammonium dichromate
7. What four elements make up ammonium dichromate?
______________________ _______________________
______________________ _______________________
8. Describe ammonia
9. Describe chromium
10. What is the formula for ammonium dichromate?___________________Hawking
11. Describe calcium carbonate:
12. Name and Describe each of the three elements that make up calcium carbonate. (HINT: look up sulfate on the IONS LIST on ISN page 7)! 1-
! 2-
! 3-
13. What is the formula for calcium carbonate? _______________________
9
LAB: Ionic Compounds continuedCarson
14. Describe lead oxide
15.Name and Describe each of the two elements that make up lead oxide?! 1-
! 2-
16. What is the formula for lead oxide?____________________________Carver
17.What two elements make up hydrogen hydroxide? ! ! ! ! _________________&___________________18.What is the formula for hydrogen hydroxide? ____________________________19. Figure out the common name of hydrogen hydroxide? __________________(hint:use your brain)
20. What is the common way to write the formula for hydrogen hydroxide? ________________
Newton's Questions:21. What are some common characteristics of ionic compounds due to their crystal structure? (see Text 136-137)
22. What happens to electrons in ionic compounds?
23. What is the overall charge of an ionic compound?
10
REVIEW of IONIC BONDING
Use your Ions List to answer these questions
1. How many electrons does sodium lose in a chemical reaction? ______
2. How many electrons does phosphorous gain in a chemical reaction? _______
3. Name two metals that do not always lose the same number of electrons.
4. How can you tell that those two do not always lose the same number of
electrons?
5. Name four nonmetals that could take the electron(s) that lithium loses in a
chemical reaction.
6. In a chemical compound, would you expect an oxide ion to be joined with one
atom of calcium or one atom of potassium?
7. A compound of sodium nitride would contain how many sodium ions?
8. Predict the number of atoms of each element that would be needed to form a
compound of cadmium sulfide.
9. What is the formula for hydronium carbonate?
Determining Ionic,Covalent or Metallic Bonding
11
From the name of a compound, can we determine whether it is ionic or covalent or metallic Bonding?
Yes, from the name of the compound, you have to be able to figure out whether you have metal bonding with metal, non-metal with non-metal, or metal and non-metal. Remember, metals are on the left side of the “stair-case” non-metals are on the right.
Fe (Iron), the metal iron with metal iron so it is metallic bondingH2O (water), is non-metal hydrogen with non-metal oxygen is covalent bondingNa2O (sodium), metal sodium with non-metal oxygen so it is ionic bonding
There are some exceptions to those rules. The exceptions involve the polyatomic ion ammonium. Ammonium(NH4) is a polyatomic positive ion and contains only non-metals. So it is possible to have nonmetals that are found in ammonium(nitrogen and hydrogen) in the form of NH4 with a positive charge. When combined with negatively charged non-metal you get an ionic compound but you have no metal atoms contained in it!
QUESTIONS: Which of the following compounds are ionic and which are covalent?
1. ammonia(NH3) ________________ 2. potassium nitrate ________________
3. tin(IV) oxide _________________ 4. hydrogen (H2) _______________
12
Electron Dot DiagramsAlmost all chemical reactions occur between electrons in the outer energy level of atoms. For that reason, the outer energy level will be the only one considered here. 1. In the most stable atoms, the noble gases- their outer energy level is full2. In somewhat stable atoms - the sub-levels of their outer energy level are about
half-filled, like Carbon3. Octet Rule -the maximum number of electrons in the outer energy level is 8.
(a)Atoms will combine to form compounds in order to reach eight electrons in their outer energy level.
(b)Atoms with less than 4 electrons in their outer level tend to lose electrons to form compounds.
(c)Atoms with more than 4 electrons in their outer level tend to gain electrons to form compounds.
4. Electron-dot diagram - a way of drawing the outer energy level electrons of an atom.
5. The chemical symbol for the atom is placed in the center of an imaginary rectangle. The symbol represents the nucleus and all electrons of the atom, except the valence electrons. Each side of the imaginary box around the symbol represents an electron energy sub-level.
6. Electrons are represented by "dots".
Examples of Electron-dot diagrams
Lewis Dot Diagrams of Selected
Elements
Lewis Symbols Electron Configuration into Shells
Index
Chemical concepts
Chemistry of the
Elements
Periodic Table
*****HyperPhysics Quantum Physics R NaveGo Back
3/22/05 10:05 AMLewis Dot Diagrams of the Elements
Page 1 of 4http://hyperphysics.phy-astr.gsu.edu/hbase/pertab/perlewis.html#c1
13
Electron Dot Diagrams continued
1. Draw the electron-dot diagram for calcium.
2. Draw the electron-dot diagram for sodium.
3. Draw the electron-dot diagram for chlorine.
4. Draw the electron-dot diagram lithium fluoride
5. Draw the electron-dot diagram for a water molecule.
! ! ! ! ! ! ! ! !
14
Lab:
Mol
ecul
ar M
odel
s M
ater
ials
: 1 M
olecu
lar m
odel
kit pe
r 2 st
uden
ts, Co
lored
Penc
ils, P
eriod
ic Ta
blePr
oced
ure :
1. De
termi
ne th
e nam
e or f
ormu
la as
nece
ssary,
Coun
t and
reco
rd th
e # of
atom
s in e
ach f
ormu
la.2.
Using
your
kit, m
ake m
odels
of ea
ch fo
rmula
.3.
Draw
and c
olor t
he m
odel
you h
ave c
reated
. Use
the c
olor k
ey to
the r
ight
4. Re
pres
ent t
he bo
nding
using
dot s
tructu
re.
5. Us
ing th
e Peri
odic
Table
, dete
rmine
if th
e bon
d is i
onic
or co
valen
t.
Nam
eF
orm
ula
Co
un
t A
tom
sD
raw
& C
olo
rD
ot
Dia
gra
mT
yp
e o
f B
on
d
wat
er
hyd
roge
n p
ero
xid
eH2O2
hyd
roge
nH2
sod
ium
ox
ide
15
Carb
on
- B
lack
Nit
roge
n-
Blu
eH
yd
roge
n-
Ye
llo
wO
xyge
n-
Re
dC
hlo
rin
e-
Gre
en
So
diu
m -
Ora
nge
Po
tass
ium
- P
urp
le
Bo
nd
s- W
oo
d P
egs
Nam
eF
orm
ula
Co
un
t A
tom
sD
raw
& C
olo
rD
ot
Dia
gra
mT
yp
e o
f B
on
d
hyd
roch
lori
c ac
id
po
tass
ium
ch
lori
de
KCl
NaCl
KOH
chlo
rin
e
NH4OH
16
magnetic attraction and chromatography.
Match each term with its definition by writing the letter of the correct definition in theright column on the line beside the term in the left column
a. shows the elements and ratio of atoms in a compound
b. a group of two or more atoms held together by chemical bonds
c. a substance made of two or more elements chemically combined in a set ratio
d. a substance that cannot be broken down into anyother substance
e. two or more substances together in the same place but not chemically combined
f. the basic particle of any element
g. the force of attraction between two atoms
1. atom
2. chemical bond
3. molecule
4. element
5. chemical formula
6. compound
7. mixture
17
LAB: Paper Chromatography Chromatography is used to separate mixtures into the substances they are made of. All forms of chromatography work on the same principle. They all have a stationary phase (usually a solid, or a liquid supported on a solid) and a mobile phase (a liquid or a gas). The mobile phase flows through the stationary phase and carries the mixture with it. Different parts of the mixture travel at different speeds. The greater the affinity (called the Rf) the part of the mixture has for the mobile phase, the further it will travel.In paper chromatography, the stationary phase is a very uniform absorbent paper. The mobile phase is a suitable liquid for the mixture, we will use water. The ink will wick up the paper.
Purpose: To use physical means(chromatography) to separate a
mixture.
Vocabulary: affinity, wick, mobile phase, stationary phase
Materials: 2 50 mL test tubes, beakers, test tube rack, filter paper,
markers, toothpicks
Procedure:
1.Use pencil to write your initials at the top of the strip.
2.Make a small black dot 2.5 cm from the other end of the
paper strip with marker
3.Poke toothpick through the other end 1 cm from top.
4.Fill the test tube to a depth of 6 cm.
5.Hang paper into tube, resting on the toothpick
6.Observe several until colors have separated
7.Repeat steps 1-6 for a green dot.
8.When instructed to, remove strips and allow to dry 24 hours on your class tray.
Hypothesis: If the black ink is separated using chromatography then it will be
composed of these colors:________________________________________
______________________________________________________________
Definitions:
affinity-
to wick(verb)-
2.
3.
4.
1. A.S.
18
LAB: Chromatography ContinuedDefinitions:mobile phase-
stationary phase-
Questions:
1. Describe the chromatography process using the 4 new vocabulary.
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
3. What are the 3 primary colors of pigment in black ink? (use internet
research)___________________________________________________________
__________________________________________________________________
_______
4. What are the real life uses of chromatography? (use internet research)
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
19
LAB: Decomposition of Sugar,Separation of a Compound
Purpose: To demonstrate chemical means to break down a compound (sugar)
Materials: sugar(C12H22O11), sulfuric acid (H2SO4), Petri dish, wood splint, goggles, fume hood,
Hypothesis: If we remove water from sugar then ___________________ will be left over.
Procedure:
1.Fill the Petri Dish with 30 g of sugar
2.Pour sulfuric acid on sugar
3.Mix with splint(optional)
4.Observe and sketch Before Acid After Acid
Questions:
1. What element was left after the water was removed?
2.What caused the great expansion of volume from small pile to large mass?
3. The experiment was exothermic. What does that mean?
20
Excited Atoms and Photons In 1913 Niels Bohr had a theory that the electrons of atoms exist in only certain locations at specific distances from the nucleus. These locations are called energy levels. If the electrons are in their specific energy levels, they stay in orbit around the nucleus by a type of centripetal force. That is, under normal conditions atoms are stable. Their electrons do not lose energy and fall into the nucleus, just as planets do not lose energy and crash into the sun. However, an atom can gain energy rather easily. If it does so, its electrons will absorb the energy; then they will jump up to higher levels, farther away from the nucleus. These energized atoms are very unstable. They quickly return to their more stable condition when the electrons fall back to their lower energy levels. As electrons fall back to these more stable levels closer to the nucleus, they give off a certain amount of energy. The tiny burst of energy released by a falling electron is called a photon This emitted energy can also be called radiation. Light is actually one type of radiation. If an electron falls a great distance, such as that from an outermost to an innermost level , a high-energy photon (high-energy radiation) is released. However, if an electron falls only a short distance, such as from a nearby level, the photon released has much less energy. The type of photon that is radiated is determined by the distance the energized electron falls when it returns to a more stable condition. Examples of high-energy photons are X rays , gamma rays, and ultraviolet light. Examples of low-energy photons are microwaves, infrared light, and visible light.
1.What causes electrons to jump to higher energy levels?
2.What triggers the release of a photon?
3.The amount of energy a photon carries is determined by what factor?
4.What are two examples of high energy radiation?
photon
21
Formulas & Names ReviewInstructions:Use charges on the IONS LIST on ISN page 7 to give the formula and the name for each of the following compounds. NOTE: if there is no reaction possible between the ions indicate by writing “NR.”
Ions in Compound Formula Name
1. Mg O
2. Al Cl
3. Zn I
4. Li CO3
5. Al Ba
6. Fe(II) N
7. Ca PO4
8. K Cl
9. Na HCO3
10. Mn O
22
COMPOUNDS AND BONDING REVIEWCOMPOUND- ions combine chemically in a specific ratio, the ratio is indicated by a formula
CHEMICAL FORMULA - shows the ratio by using SUBSCRIPTS
examples: H2O CuCl2 Al(CO3)3
How atoms combine is determined by the electrons in the outer energy level (VALENCE ELECTRONS). The goal is to be STABLE with 8 electrons in the outer energy level. The exception to this is an atom that just has one energy level then the number would be 2. Atoms will gain, lose, or share electrons with each other to do this.
BOND - the force that holds atoms together - this bond is electrical in nature (+ or -)
ION - is a charged particle - if an atom loses electrons it becomes a positive ion - if an atom gains electrons it becomes a negative ion
IONIC BONDING - bonding that occurs between opposite charged ions this happens as one atom transfers electron(s) to another atom forming ions. Ionic bonding usually occurs between metals and nonmetals
COVALENT BONDING - bonding that occurs between atoms as the share electrons to become stable. Covalent bonding usually occurs between nonmetalsHydrogen always covalently bonds
METALLIC BONDING - Occurs between metals. Metallic Bonding has free moving electrons or “sea of electrons”
MOLECULE - a name applied to substances that are formed with covalent bonding.
FORMULA WRITING
OXIDATION NUMBER = VALENCE=Charge number
This is the combining ability of an atom. It tells how many electrons an atom will gain, lose, or share when forming a compound. This is usually determined by the number of electrons in the outer energy level but it can vary.
The sum of the oxidation numbers in compounds must equal 0
All compounds are electrically neutral
23
COMPOUNDS AND BONDING REVIEW continuedWhen writing a formulas the metal or the element with the positive (+) oxidation number/is always written first
example: NaCl or table salt. Na is positive and Cl is negative
The “Old” FORMULA TRICK
1. write oxidation numbers above the symbols
2. check to see if you have a positive(+) and negative(-)
3. check to see if they already add to 0 - if not go to 4
4. cross oxidation numbers to determine subscripts.
note: the number 1 is always implied disregard negative sign
NAMING COMPOUNDS
BINARY COMPOUNDS - compounds made of 2 elements
IDE - in a binary compound, end the name of the second element with the ide suffix sodium and chlorine make sodium chloride
POLYATOMIC IONS• a group of atoms which act together as one charged particle called an ion. They
have their own name and oxidation number• when you name compounds that have polyatomic ions in them you just use the
name of the polyatomic ion
NOTE - you must use ( )when you have more than one in the formula
example: Al2(CO3)3 is correct. Al2CO33 is NOT correct
2+Mg
-1Cl
2+Mg
-1Cl
MgCl2
24
Mind MapUse following terms to create a mind map aka concept map: molecular compounds,
chemical bonding, ionic bonds, covalent bonds, ionic compounds, transfer electrons, share electrons
Mind Map15 cm wide x 17 cm tall
25
Outside Reading Article And Extended Response
Find a current article (2004-present)that relates to our current ISN.To find articles you can use these two great research resources:
1. Go to the NBJH homepage then Click on Library Resource Center and then use the data ---or---Use “Sato’s Science Search Engine” linked on Mr. Sato’s site
3. Write a Response should be one/two paragraphs that includes:KEY IDEAS from the article.CONNECTIONS from the article toThe current science chapterSomething from this unit we did in class or labYour own lifeEXTENSION OF IDEAsGOOD BALANCE of References and ConnectionsConclusion
4. Put into Quia
26