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:
Cells
<( ̄︶ ̄)> []~( ̄▽ ̄)~* ( ̄﹏ ̄) ( ̄ˇ ̄)
Composed of sodium ions Na+( elemental sodium is a metal). And iodide ions l-(elemental iodine is a nonmetal)
The tectonic plates are made up of many things but mainly rock and the guy who posted an answer dose not know what he's talking about
Answer:
3-³ x (1/3)^-5 x (1/3)-²
Applying Indices
3^-3 x (3-¹)^-5 x (3-¹)^-2
When the negative signs interact
they become positive
We now have
3^-3 x 3^5 x 3^2
= 3^-3 x 3^7
=3⁴.