You can't really describe it but this is what it looks like http://www.chemspider.com/Chemical-Structure.453291.html
Sand only bc the salt dissolved and sand doesn't
Answer:
There are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.
Explanation:
We can calculate the number of moles (η) of BeO as follows:

Where:
m: is the mass = 250 g
M: is the molar mass = 25.0116 g/mol
Hence, the number of moles is:

Therefore, there are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.
I hope it helps you!
The correct answer would be the second option. It would would need 2 moles of electrons to reduce one mole of bromine gas into two moles of the bromide ions. This is a reduction reaction. It would be written as:
Br2 = 2Br- + 2e-
Answer:
known as reactions and metaphorically breaking the witness into telling the truth. I hope this helped:)
Explanation: