Fluorine! It's highly reactive, since it has 7 electrons and wants an extra electron to fill its valence shell.
Answer:
The answer is
<h2>12,574,750.83 moles</h2>
Explanation:
In order to find the moles of CO2 we use the formula

where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question
N = 7.57 × 10^30 molecules of CO2
We have

We have the final answer as
<h3>12,574,750.83 moles</h3>
Hope this helps you
Answer:
the molar mass is 40 and the metal is Calcium
Explanation:
X + H2SO4=X2SO4 + H2
The mole ratio is 1:1
no of mole of H2SO4= conc(M) × Vol(L)
=0.1×0.5
=0.05 mol
from the balanced chemical equation of the reaction
no of mole of 'X' = no of mole of H2SO4
thus no of mole of X=0.05 mol
Also, no of mole=mass/molar mass
molar mass of 'X'=mol/mass
=2/0.05
=40
That dose not make any sense and plus I have not got that far in chemistry yet