I had to find the numbers of atoms in 2 Al (NOsubscript 3)subscript 3. I got 16, but the answer in my book is 26. Who is incorret? Thanks!!!

Answer 1

2Al(NO3)3

2Al

6N

18O

Answer 2

A pertinent questions is 2 Al(NO3)3 WHAT? moles? grams? liters? tons?