Check off each one that shows a correct conversion. Example: 1 mol Al= 6.022 x 10^23 atoms Al would be checked off. A. 2.5 mol CaCO3 = 1.51 x 10^24 molecules CaCO3

B. 2 mol Al2O3 = 101.96 g Al2O3

C. 1 mol Be3N2 = 55.06 g

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

your answer would be “dry”