Coal=fire and in the artic its hard to build a fire
Fixed density
Particles move smoothly
Answer:
Correct option is B)
According to de-Broglie,
λ=mvh=6.023×10232×5×104cm/sec6.62×10−27ergsec=4×10−8cm=4Ao
Answer:
Aluminium is ordinarily classified as a metal. It is lustrous, malleable and ductile, and has high electrical and thermal conductivity. Like most metals, it has a close-packed crystalline structure and forms a cation in an aqueous solution.
The formula C2H4 can be classified as both a molecular formula
and an empirical formula. The answer is number 4.
