Answer:
An oxygen atom shares a single electron with each H
Explanation:
H:O:H
Covalent bond, so
An oxygen atom shares a single electron with each H.
Atomic mass silicon = 28.085 u
1 mol Si ---------------- 28.085 g
? ------------------------ 245 g
245 x 1 / 28.085 => 8.72 mol
answer A
The answer is C, because if the copper has a +2 charge, the fluoride must have a -2 charge in order to cancel out.
Squeezing just the juices out of the orange, like with your hand or whatever you use, is a physical change. yes :)
