Answer:
No. of atom =
no.of moles x avagardro's number xatomicity
= weight /molar mass x No x atomicity
=8.2/142 x6.02x10^23 x 4
=0.346 x 10^23(approximately)
No, the formation of dew is condensation, which is a physical change.
Fluorine (F) will have properties similar to Bromine (Br) because it belongs to the same group as Bromine.
Answer:
i believe it's C
Explanation:
the result of multiplying (2.5 * 1010) and (3.5 x 10-7) is 8.8.10^3
BE CAREFUL! If it is a controlled lab wear saftey equiptment. But it can blow up. So careful...
