Answer:
2,47 * 
(molecules)
Explanation:
Avogadro's number is a very important relationship: 1 mole = 6,02 * 
atoms, molecules, protons, etc.
To convert from moles to molecules, multiply the molar amount by Avogadro's number.
4,1 mol * 6,02 * ≈ 24,7 * = 2,47 * (molecules)
Therefore the third answer is correct
To solve this problem all you would have to do is to use the stoichiometric ratio of 1 mol of Oxygen would react with 2 mol of H2O, to find moles of water produced.
1 mol of O2 = 2 mol of H2O
20 mol of O2 = 40 mol of H2O.
The moles of water produced would be 40 moles.
Answer:
Because selenium is in the 16th column on the periodic chart, it has 6 valence electrons. Thus, the Lewis structure (or electron dot structure) for selenium has 6 dots around it.
It will look similar to this without the underscores:
__.
. Se:
_. .
Explanation:
Answer:
B. Building houses near the beach
Explanation:
it was right on edge
