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Chemical Formulas and Molecular Structures Flashcards | StudBud
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Chemical Formulas and Molecular Structures
Chemical Formulas and Molecular Structures
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NAMING CHEMICAL FORMULAS AND MOLECULAR STRUCTURE #grade_10 #science #chemistry
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1
NOT a characteristic of metallic bonding
luster
malleable and ductile
conductor of heat and electrciity
insulator
2
All are characteristics of Metallic Bonding EXCEPT
SEA OF ELECTRONS
TRANSFER OF ELECTRONS
CONDUCTIVE
MALLEABLE
3
What is the prefix for 7 when naming hydrates?
Hexa
Octa
Penta
Hepta
4
When naming hydrates which is true?
write the compound then the waters
All of the above
write a prefix for the number of waters in the compound then write hydrate
You write the name of the compound first
5
Naming and Formulas:
What is the chemical name for NCl3?
Nitrogen Trichloride
Nitrogen Dichlorite
Nitrogen dichloride
Nitrogen Trichlorite
6
What is the rule for naming ionic bonds?
We don't name ionic bonds
Change the ending to -ide
Nothing changes with the name
Add prefixes and change the ending to -ide
7
Use prefixes when naming ionic bonds.
False
True
8
metallic bonding.
broken
positive ions surrounded by electrons.
works
negatively charged.
9
Molecular Geometry
C
D
A
B
10
copper(I) oxide
CuO2
Cu2O
CuO
Cu2O2
11
When writing chemical formulas or naming compounds, what is the first question you must ask?
What is the name of the second element?
What kind of bond is it?
What is the name of the first element?
Does the metal come first?
12
What is the molecular geometry of the molecule shown?
L-Shaped
Bent
Linear
T-Shape
13
What type of electron affects the molecular geometry more?
Lone pairs
Bonded pairs
14
Metallic bonding involves
the transfer of electrons.
the sharing of electrons.
a sea of electrons.
shared protons.
15
Metallic bonding is found ....?
Inside covalent compounds
Between a metal and non metal element
Between one or more metal elements
In all rocks
16
Molecular structure is:
The relationship of the polar and nonpolar structures
The charge of the molecules
The location of the atoms relative to one another
The building blocks for an atom
17
What is the Molecular Geometry (shape) of a CH
4
molecule?
Linear
Tetrahedral
Square
Trigonal Pyramidal
18
What is the molecular geometry around the central atom in O
3
?
Tetrahedral
Linear
Trigonal planar
Bent
19
What is the Molecular Geometry (shape) of the molecule shown?
Linear
Trigonal Pyramidal
Tetrahedral
Trigonal Planar
20
What do you do when naming ionic bonds?
name of metal is written 1st in a formula.
name of metal is written 2nd in a formula.
the metal is not mentioned in the formula.
name of metal is written 1st or 2nd in a formula.
21
Metallic bonding characteristics
Low melting and boiling points
Electrons are delocalized
Cannot easily move
Electrical and thermal conductivity
22
Do we use prefixes when naming ionic bonds or covalent bonds?
ionic
covalent
nonmetals
protons
23
What is the
molecular
geometry (shape) of CH
3
Cl?
trigonal pyramid
bent
tetrahedral
trigonal planar
24
What is the charge of Fe in iron (III) chloride?
-2
3
+3
-3
25
VESPR theory is supported by...
protons repelling each other
electrons attracting each other
electrons repelling each other
protons attracting each other
26
Which is true in naming binary molecular compounds from their chemical formulas?
They contain only two elements that are both nonmetals or a metalloid & nm
All
Prefix is used in the front of elements that corresponds with the subscript
No "mono" in the first element, Second element use ending -ide
27
In naming ionic bonds, the ___ gets the "ide" ending
cation
anion
anion and cation
28
What is official name for writing and naming chemical formulas?
nomenclature
naming & writing
nada
nilly
29
What is the m
olecular geometry around the central atom in NH
4
+
ion?
Square planar
Tetrahedral
Trigonal pyramidal
Trigonal planar
30
Carbon dioxide (CO
2
) has what molecular geometry?
Linear
Tetrahedral
Bent
Trigonal planar
31
What is the prefix for 4 when naming hydrates?
Quart
Forta
Quad
Tetra
32
What is VESPR theory?
Electrons attract which affects shape of a compound
Electrons repel which affect shape of a compound
33
Fe(III) Cl
-1
FeCl3
Fe(III)Cl
Fe3Cl
FeCl2
34
Naming hydrates involve a dot (•) and ________ groups.
H2O
H
F
C
35
what do you always name first when naming ionic bonds
metals
transiton
non metals
noble gases
36
What is the oxidation state of Fe in Iron(III)chloride
+3
+1
-3
+2
