Answer:
3.78 x 10^24
Explanation:
I mol = 6.02X10^23 atoms
So,
I did not round the last number
the full answer was, 3.78056 x 10^24
18.6
use snells law for glass n=sini/sinr
the value of angle of refraction in glass becomes value of angle of incidence in the glass methanol interface
use snells law again to get the angle light makes with methanol.
Answer:

Explanation:
The valance of magnesium atom is
While the valence of nitrogen atom is 
Let us first write the first half-reactions

The second half reaction is

Adding the above two reactions and writing the final reaction, we get -

The balance equation is

Answer:
Steel
Explanation:
I took a test and got this question right