Using the following balanced question:
1b2o3 + 3mg —-> 3mgo + 2b
a) how many grams of b can be obtained from 234 grams of b2o3?
b) how many grams of magnesium are required to produce 40.0 grams of boron?

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %

Substance a is a nonpolar liquid and has only dispersion forces among its constituent particles. substance b is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles. when substance a and b are combined, they spontaneously mix.

Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released