How many miles of compound are there in the following?
a. 6.60g(NH4)2SO4
b. 4.5kgCa(OH)2

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?