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chem 1120 chapter 3 - 5 Flashcards | StudBud
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chem 1120 chapter 3 - 5
chem 1120 chapter 3 - 5
44 terms
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Answers
1
what is the charge of Al
+3
-1
+2
-3
2
were almost done hang in there!! what is being transferred in a oxidation-reduction rxn
protons
electrons
absolutely nothing
neutrons
3
ionic formulas: give only the ratio
False
True
4
when an ionic solid is dissolved in water the ions move freely and charges are noticed and ions can conduct electricity
True
False
5
...you change coefficients
False
True
6
polar covalent
2.0
0.5-1.9
0-0.4
7
name the molecule: H
3
0
+
hydronium
hydronium ion
ammonium ion
oxalate ion
8
this is a really hard one. you got it!! NO
3
-
b
c
D. I would have to guess on the test - plz go over this
a
9
Fe(___)Cl
3
- what charge goes in blank
I
III
II
please explain this to me???
10
Oxidation
loss of electron
gain of electron
my brain hurts
idek at this point
11
what is a spectator Ion
one that doesnt undergo change
one that undergoes change
12
molecular formulas
show the charge
Show the number of atoms and the charge
show the # of atoms in a molecule
13
polar ionic
2.0
0.5-1.9
0-0.4
14
a base produces H+ ions when dissolved in water
True
False
15
when naming binary molecular compounds you name the first part of the molecule name use mono
True
False
16
C
2
O
4
2-
chromate ion
oxalate ion
oxalate
phosphate ion
17
ionizing energy is
energy released from adding e-
energy required to add e-
energy released by removing e-
energy required to remove e-
18
HCl
a
b
? im still lost
c
19
dipole is the separation of charge
True
False
20
when writing polyatomic ions you DO need to indicate charge because they are ionic compounds
False
True
21
molecular geometry. if a molecule has 2 bonds and 1 lone pair it is
linear
bent
tetrahedral
trigonal planar
22
ascetate ion
CH3CO2-
CN-
H3O+
NO2-
23
electron affinity is
energy released from adding e-
energy required to remove e-
energy required to add e-
energy released by removing e-
24
if a molecule has 4 bonds and 0 lone pairs it is a
tetrahedral
pyramidal
bent
linear
25
if Br loss one e- what would be the correct structure
d
a
c
b
26
PH
3
(hint: P has 5 VE and H has 1)
c
? please go over this really quick
a
b
27
t or f
correct
im lost
incorrect
this is wrong bc it doesnt show charges
28
what is the charge of Cl
how do I tell????
not charged
+1
-1
29
an anion is
negatively charged (-) nonmetals
positively charged (+) metals
neutral
not charged
30
permangonate
CO2-
CO3
Pr
MnO4-
31
FeCl
2
Iron (II) chloride
Iron chloride
Iron (2) Chloride
iron and chloride
32
oxidation and reduction never occur together
True
False
33
since carbon must always have 4 bonds, there is no room for lone pairs - so it is a tetrahedral
True
False
34
sometimes the shape of the molecule can cancel out polarity
True
False
35
ionic bond is an electrical attraction
False
True
36
covalent bond is the sharing of electrons between molecules
False
True
37
identify diatomic ions
Cl2
H2, N2, O2, F2, Br2, I2
Na, Fe, and Al
i cant remember can you show me the hint
38
if a molecule has 3 bonds and 0 lone pairs it is
pyramidal
trigonal planar
bent
bent
39
t or f
True
False
40
when balancing chemical equations you change the subscript
True
False
41
what is the charge of H
-1
+1
no way to tell
not charged
42
what are the products of an acid base neutralization reaction
water
neutral water and salt
salt
ca+
43
a cation is
negative charged (-)
positively charge (+)
neutral
not charged
44
non polar covalent
0-0.4
0.5-1.9
2.0
