2 Na + SO3 = Na2SO3
Na = 1
SO3 = 1
Na2SO3 = 1
Na = 2
SO3 = 1
Na2SO3 = 1
I hope this helps!!

the way that you get 66 is by adding he atomic mass unit of each atom in the formula. so N2 is 14 + 14 H4 is 1 * 4 and 03 is 16 * 3
The answer is B. The carrying capacity will decrease, forcing the population to decrease as well.