The answer is 60 minutes to complete 50% of reaction.
Answer choice C. Reduction has its electrons as a reactant.
You would expect to see a marble-looking rock
K ---> 38.7 g / 39.1 g/mol = 0.99
N ---> 13.9 g / 14.0 g/mol = 0.99
O ---> 47.4 g / 16.0 g/mol = 2.96
Divide by smallest:
K ---> 0.99 / 0.99 = 1
N ---> 0.99 / 0.99 = 1
O ---> 2.96 / 0.99 = 3
KNO3
