Question

atomic masse now putting co2 , naso4 and na20​

Answer 1

Answer:

CO2 = (12×1)+(16×2) = 44u

na2so4 = (23×2)+(32)+(16×4) = 142 u

na20 = (23×2)+(16×1) = 62u

Answer 2

Explanation:

hello this is right answer or not