The average atomic weight is, from the name itself, the average weight of all its naturally occurring isotopes. All you have to do is multiple the abundance of each isotope with its individual mass, then add them altogether.
Mass = (0.10*55)+(0.15*56)+(.75*57)
<em>Mass = 56.65 amu</em>
D. Sublimation is a solid turning directly into a gas
Answer:
it is a replacement reaction
There are 30 inches in 2.5 just know that a foot is 12 inches so 12 times 2.5 is 30
