0.7 g 9.3 g 10.0 g 19.3 g
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: When heated, mercuric oxide decomposes to form liquid mercury and oxygen. A scientist heated 10 grams (g) of mercuric oxide and formed 9.3 grams of liquid mercury. How many grams of oxygen were formed?
Possibilities:
- 0.7 g
- 9.3 g
- 10.0 g
- 19.3 g

0.7 g