How many atoms are in 0.432 g of KNO3? Round your answer to three significant figures.
A…2.58 x 1021
B…7.10 x 10-27
C…0.00428
D…43.6

A

I did it and got this but it know the first one is right as it only missing of some point it will be calculator error and also the answer is to the power of 21.

hope this make sense :)

there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

hope this