618.454. I just did the equation in a character oops.
Answer:

Which is the best metal to use in an alloy to increase its electrical conductivity?

Silver(Ag)..........
Answer:
Height in meters = 73000 ÷ 100
(1m =100cm)
= 730m
Hope it helps.
The Hbr has highest boiling point followed by Kr ,
and
.
The Hbr has highest boiling point due to presence of intermolecular H-bonding that is hydrogen bonding.
The electronegativity of bromine is greater than hydrogen atom. The electronegativity difference hydrogen atom and bromine atom is high. So, due to this a positive dipole is generated at hydrogen atom and partial negative charge, these partial charge is called dipole. In a HBr molecule one H-atom attracted by Br-atom of another atom by force of attraction and this partial force of attraction is called H-bonding.
Other all given molecules are arrange according to its molecular mass because boiling points is directly proportional to the molecular mass of molecule.
learn more about boiling point
brainly.com/question/2153588
#SPJ4
Sufficient energy upon collision of particles and correct orientation of particles