Answer:
Explanation: I don't know
The answer is b because I learned this in 5th grade and I got it right
(3.45 x 10^20 molecules of sulfur dioxide ) x

= 5.73x10^-4 mole of sulfur dioxide
Answer:

Explanation:
Hello there!
In this case, according to the given chemical reaction, it is possible for us to calculate the produced grams of nitrogen monoxide by starting with 25.0 g of nitrogen via their 1:2 mole ratio and the molar masses of 30.1 g/mol and 28.02 g/mol, respectively and by some stoichiometry:

Best regards!