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Blind Covalent Nomenclature with drawing structural formulas Flashcards | StudBud
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Blind Covalent Nomenclature with drawing structural formulas
Blind Covalent Nomenclature with drawing structural formulas
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Covalent Naming Nomenclature Blind Non-metals Prefixes
Flashcards
51 cards
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Practice quiz
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Questions
51
Answers
1
Blind: 3rd step. Connect all outer atoms to center atom with a straight line (represents 2 e-)
Got it?
Nope
2
Name the following compound, NBr
3
nitrogen tribromide
nitrogen bromide
nitrogen bromine
mononitrogen tribromide
3
Blind: What is a covalent or "molecular" compound? Watch
tinyurl.com/covalentanimation (5 min)
Got it?
Nope.
4
Blind: Step 6. Make sure all atoms have a full outer shell. If center not full, move lone pairs
Got it?
Nope.
5
Blind: 2nd Step. (electronegative trend is up and to the right)
Atom u have less of in center.If tie, most electronegative
Atom u have less of in center.If tie, least electronegative
6
4th Step: How many dots would we put around EACH chlorine (Cl) to complete this step.
8
6
3
none
7
Name O
2
"elemental oxygen" or "diatomic oxygen"
oxygen
8
Blind: Draw the structural formula for H
2
O. (Teacher will draw on the board)
Nope.
Got it.
9
In chemistry, valence electrons are
emotional value we give to a person, event, goal, etc
all the electrons
outer shell electrons
inner shell (core) electrons
10
Covalent or not? CCl
4
No
Yes
11
Choose the covalent compound.
SrCl2
Li2O
CaCl2
CCl4
12
What should do in the 3rd step?
fill in the valence electrons as dots
connect each outer atom to the center with a line (2 e-)
13
According to the octet rule, atoms must have __ electrons to fill their outer (valence) shell.
16
8 (2 if you're talking about He)
32
1
14
Blind: How do you draw the Lewis Dot or "Electron Dot" diagram for elements?
Nope.
Got it!
15
Blind - Where are the metals, metalloids and non-metals located?
metals (left), metalloids(on stair-step), Non-metals (right)
metals (left), metalloids(right), Non-metals (on stair-step)
metals (right), metalloids(on stair-step), Non-metals (left)
16
Naming covalent compounds. 1st step.
change ending of 2nd non-metal to ide (never put mono on 1st
See if it's covalent by seeing if it's only non-metals
identify the greek prefixes for each subscript
17
Metal, Metalloid, or Non-metal? H (Hydrogen)
metalloid
non-metal
metal
18
Choose the covalent compound
AgCl
LiCl
LiBr
CH4
19
Metal, Metalloid, or Non-metal? F (Fluorine)
non-metal
metal
metalloid
20
Lone pairs are non-bonding pairs of electrons. How many lone
pairs
do you see?
6
7
3
21
Blind:Name the 7 diatomics? Say "elemental" or "diatomic" and that atom.EX Elemental Hydrogen.
Got it.
Nope
22
Blind: Which of the following are covalent compounds? Remember Covalent Trick.
NaCl
MgCl2
CO2
KBr
23
Each line represents 2 electrons. How many electrons are shown to the right
single bond = 2, double = 4, triple = 6
single bond = 2, double = 2, triple = 2
all have 2 electrons total
24
Naming covalent compounds. 2nd step.
See if it's covalent by seeing if it's only non-metals
identify the greek prefixes for each subscript
change ending of 2nd non-metal to ide (never put mono on 1st
25
Metal, Metalloid, or Non-metal? Na (sodium)
metalloid
non-metal
metal
26
Is this the correct lewis dot "electron dot" diagram for neutral carbon?
Yes. He is in 4a so he has 4 valence e-
No. He's in group 14, so he should have 14 valence e-
27
Name the following compound, S
5
Cl
7
(Remember, non-metals, ide ending, never mono on 1st)
pentasulfur heptachloride
sulfur chloride
sulfur chlorine
pentasulfur heptachlorine
28
Metal, Metalloid, or Non-metal? U (Uranium)
metalloid
metal
non-metal
29
Who will go in the center? CF
4
C
F
30
What is wrong with writing this reaction? H + O -> H
2
0
Nothing
H and O are both diatomics so they can never be on their own
31
What is a compound (in chemistry)?
an open area enclosed by a fence, in a factory or a prison
2 or more elements bonded together
an ion
1 atom
32
Blind: Step 1. Drawing the structural diagram. Count Valence Electrons.
add all valence e-, ignore the charge
add all valence e- and add e- for - charge, take away for +
33
Is this the correct lewis dot "electron dot" diagram for neutral helium?
Yes. He's in 8A, but he's an exception. He has 2 valence e-.
No. He is in group 18, so he should 18 dots.
No. He should have 8 dots bc he's in 8A.
34
Name this compound. CO
carbon monoxide
carbon oxide
carbon oxygen
monocarbon monoxide
35
CCl
4
Last step?
carbon tetrachlorine
monocarbon tetrachlorine
monocarbon tetrachloride (change ending to ide)
carbon tetrachloride (change ending to ide)
36
Blind: What does the Bohr Diagram look elements in the 1st 3 periods?Notice He as the exception
Nope
Got it!
37
A shortcut to find the number of valence (outer) electrons is looking at the ______
Number before the B on the group # on the periodic table
Number before the A on the group # on the periodic table
The group number on the 1-18 system on the periodic table
Period Number on the periodic table
38
For drawing the structural formula, how many valence electrons does ammonium, NH
4
+
have?
10
8
5
9
39
H (hydrogen) will only need 2 electrons to be happy (DUET). So ONLY PUT 2 E- AROUND HYDROGEN.
Got it.
Nope
40
For drawing the structural formula, how many valence e- will NO
2
-
have?
18
17
16
3
41
Blind: Naming covalent compounds. Last step. Say the endings with me.
See if it's covalent by seeing if it's only non-metals
change ending of 2nd non-metal to ide (never put mono on 1st
identify the greek prefixes for each subscript
42
Blind: Name the following compound, C
2
Br
4
(Remember, non-metals, ide ending, never mono on 1st)
dicarbon tetrabromide
carbon bromine
carbon bromide
dicarbon tetrabromine
43
Who will go in the center? C
2
O
2
O C C O
C O O C
44
Blind: What is a diatomic molecule? Know all 7 of them. Look at the pattern or Mr. "BrINClHOF"
Nope.
Got it.
45
Blind: Step 4. Complete the octet for outer atoms with dots. Remember line was 2 e-
Nope!
Got it!
46
Blind: Step 5 - Count how many valence electrons we have left from the original amount.
NO3- had 24, we used 18, so 6 left.
NO3- had 24, we used 24. So 0 left.
47
Metal, Metalloid, or Non-metal? B (Boron)
metal
non-metal
metalloid
48
Choose the covalent compound.
K2O
FeCl2
CaO
H2O
49
Identify the greek prefix (must memorize these). CCl
4
C - no number so I don't know, Cl4 - Quad
C (invisible 1) - mono, Cl4 - quad
C (invisible 1) - mono, Cl4 - tetra
C (invisible 1) - write 1, Cl4 - write "four" down
50
How many valence electrons will CBr
4
?
13
5
23
34
51
Name this compound: H
2
O
dihydrogen oxide
dihydrogen monoxide (DHMO) ;)
dihydrogen monoxygen
hydrogen oxygen
