Answer:
0.008
Explanation:
From the balanced equation, 3 moles of oxygen gas produced 2 moles of the product. Then, 0.012 moles of oxygen gas will produces 0.012 x 2/3 = 0.008
There are three valence electrons in an atom of Aluminum (Al).
·
· ·
· ·
Al · or : Al : ·
· ·
· ·
·
The answer is B.
C) Occurs when chemical reactions dissolve or change the minerals in rocks...... Hope it helps, have a nice day :)
by applying the equation :
n = N/L
where
n = mol
N = number of molecules
L = avagardro constant
therefore :
N = n × L
= 9.95mol × 6.022 ×10²³ mol-¹
= 59.9189
(this has no units)
