The most likely answer I option 1
See? i am not sure if it’s right, sorry if it is not!!!
Answer:
<em>A ) 7 GRAMS</em>
Explanation:
7 grams.
The sum of the reactants must equal the sum of the products.
Reactant = 100 grams
Products = 100 g mercuric oxide - 93 g mercury which equals 7 grams oxygen.
