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Kay [80]
4 years ago
7

How many significant figures are in 20600?

Chemistry
1 answer:
-BARSIC- [3]4 years ago
6 0

There are 3 significant figures in 20600.

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When determining if a bond is polar, we must evaluate the difference in electronegativity (δen) of the atoms involved in the bon
Anastasy [175]
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The electronegativity of an atom is the tendency of an atom in a compound or molecule to attract bonding electrons unto itself. A polar bond is formed when there is an uneven distribution of charges in the molecule brought about by differences in the electronegativities of the atoms in the bonds. These differences create regions of partially positive and partially negative charges. A nonpolar bond only have very small differences in the electronegativity of the bonding atoms. 

Generally, when the difference in electronegativity is less than 0.5, the bond is polar. When the difference is between 0.5 and 1.7, the bond is polar. Finally, when the difference is greater than 1.7, the bond is ionic, which means that the bonding electron is very much attracted to the highly electronegative atom that it is transferred to the said atom instead of merely being shared by the atoms in the bond. 
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Can someone please help me!! What are the parts of a Bunsen burner if possible add a picture and name please thanks
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3 0
3 years ago
(c) is least on equator
andreev551 [17]

Answer:

it is b just trust me man I know

4 0
3 years ago
Read 2 more answers
A) How many moles of water will be formed if you start with 2.54 moles of
Tcecarenko [31]

Answer is 355 grams.
Explanation:
Given the molecular weights:
M
r
N
a
O
H
=
40
g
m
o
l

M
r
N
a
2
S
O
4
=
142
g
m
o
l
The analogy of the moles will be held constant:
n
N
a
O
H
n
N
a
2
S
O
4
=
2
1
n
N
a
O
H
n
N
a
2
S
O
4
=
2
For each one, substitute:
n
=
m
M
r
Therefore:
n
N
a
O
H
n
N
a
2
S
O
4
=
2
m
N
a
O
H
M
r
N
a
O
H
m
N
a
2
S
O
4
M
r
N
a
2
S
O
4
=
2
200
40
x
142
=
2
200
⋅
142
40
x
=
2
200
⋅
142
=
2
⋅
40
x
x
=
200
⋅
142
2
⋅
40
=
100
⋅
142
40
=
10
⋅
142
4
=
1420
4
=
=
710
2
=
355
g
r
a
m
s
(or just use a calculator)
7 0
3 years ago
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