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Ionic and Covalent Compounds
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1) What is the chemical formula?
2) How many valence electrons are being shared total?
3) How many valence electrons are NOT being shared?
4) What type of bond is between H and O? Single? Double? Triple?
5) Are each of the atoms happy? (yes or no)
Station 1H2O
4
4
single
yes
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1) What is the chemical formula?
2) How many electrons are being shared total?
3) How many electrons are NOT being shared?
4) How many electrons are in the double bond between N and O?
5) Are each of the atoms happy? (yes or no)
Station 2
NO3
8
16
4
yes
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1) What is the chemical formula?
2) How many electrons are being shared total?
3) How many electrons are NOT being shared?
4) How many electrons are in the triple bond between C and N ?
5) Are each of the atoms happy? (yes or no)
Station 3
HCN
8
2
6
yes
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1) What is the chemical formula?
2) How many valence electrons are being shared total?
3) How many valence electrons are NOT being shared?
4) What type of bond is between O and O? Single? Double? Triple?
5) Are each of the atoms happy? (yes or no)
Station 4
O2
4
8
double
yes
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1. Look at the examples above. How many bonds does hydrogen form?
2. Hydrogen ALWAYS forms this number of bonds. Why?
Station 5
ONE
It only needs one more electron to have a full outer shell
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4) Compounds have a total charge of zero 5) Atoms share electrons
3) Atoms transfer electrons
Ionic Compounds Covalent Compounds
2) Atoms in the compound have charges that balance out.
6) Formed when one atom wants to gain and one atom wants to lose electrons
1) Formed when one or more atoms want to gain electrons
Station 6
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4) Compounds have a total charge of zero
5) Atoms share electrons
3) Atoms transfer electrons
Ionic Compounds Covalent Compounds
2) Atoms in the compound have charges that balance out.
6) Formed when one atom wants to gain and one atom wants to lose electrons
1) Formed when one or more atoms want to gain electrons
Station 6KEY
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Station 7: Ionic or Covalent Compound?(Just write I or C)
1) CO _______2)MgO _______3) BN _______4) Cl2 _______5) KCl _______
CIICI
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Chemical Equations Basics
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3 6 18
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22
23
22
2
2 2
2
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NaCl Na + Cl2
Al + HCl AlCl3 + H2
2 2
22 6 3
Na + HCl H2 + NaCl2 22
Balance these! AND decide what type of reaction…
Decomposition
Single replacement
Single replacement
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Classifying Chemical Reactions
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1. N2 + 3H2 2NH3
2. 2KClO3 2KCl + 3O2
3. 2NaCl + F2 2NaF + Cl2
4. 2H2 + O2 2H2O
5. 2AgNO3 + MgCl2 2AgCl + Mg(NO3)2
6. 2AlBr3+3K2SO4 6KBr + Al2(SO4)3
7. CH4 + 2O2 CO2 + 2H2O
8. C3H8 + 5O2 3CO2 + 4H2O
9. 2C8H18 + 25O2 16CO2 + 18H2O
10.FeCl3 + 3NaOH Fe(OH)3 + 3NaCl
1. S2. D3. SR4. S5. DR6. DR7. C8. C9. C10.DR
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Characteristic Properties
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Energy and Rate of Chemical Reactions
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Exo or endo?
Reaction Progress
Ener
gy
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Exo or endo?
Reaction Progress
Ener
gy
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Exo or Endo?
Reaction Progress
Ener
gy
What “type” of reaction is this?
C3H8 + 5O2
3CO2 + 4H2O
combustion
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Exo or Endo?
Reaction Progress
Ener
gy
What “type” of reaction is this?
2H2 + O2
2H2O
synthesis
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Exo or Endo?
Reaction Progress
What “type” of reaction is this?
2AlBr3+3K2SO4
6KBr + Al2(SO4)3Double replacement
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Exo or Endo?
Reaction Progress
What “type” of reaction is this?
2NaCl + F2
2NaF + Cl2Single replacement
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Exo or Endo?
Reaction Progress
Ener
gy
What “type” of reaction is this?
2KClO3
2KCl + 3O2
decomposition
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Element Math- For Acuity
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Protons:
Neutrons
Electrons:
20
20
20
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Protons:
Electrons:
Neutrons:
19
19
20
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Electrons:
Protons:
Neutrons:
22
26
22
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Protons =
Electrons =
Neutrons =
14
14
14
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Protons =
Electrons =
Neutrons =
15
15
16
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Protons =
Electrons =
Neutrons =
18
22
18