In fractional crystallization, what makes this disadvantageous is that multiple runs are needed in the process. This is to purify the mixture adequately but this still does not reach that 100% purity. In addition to the disadvantage of this, some of the mixture is lost during the process. This is because of so many steps being done. Hope this helps.
Answer:
1. 2 H2 1 O2 and 2 H2O
2. 2 THEN 2
3 1 THEN 2
4. 2 THEN 7 THEN 4 THEN 6
5. 1 THEN 1 THEN 1 THEN 2
Explanation:
Answer:In
1
m
o
l
of
C
a
atoms
, there are
N
A
individual calcium atoms.
Explanation:
How does this help you? Well, it happens that
N
A
,
Avogadro's Number
≅
6.022
×
10
23
⋅
m
o
l
−
1
.
And it is stated on your trusty Periodic Table that the molar mass of
C
a
is
40.08
⋅
g
⋅
m
o
l
−
1
. So, if we specify a molar quantity, we specify a precise number of atoms and molecules that can be approximated by mass.
Explanation:
If this is scientific notation, then the answer is 22290000, or 2.229x10^7