Aluminum can react with oxygen gas to produce aluminum oxide (al¿oà). what type of reaction is this?
a. single- replacement
b. combination
c. double-replacement
d. decomposition

How many moles are equivalent to 55.5g of nano3

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

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?