The third answer because there are two of each atom
Products. I’m not 100% sure because I don’t fully understand what your asking but if you are talking as in chemical reactions, the answer is a product.
Its inorganic as MgCO3 is contains no carbon more hydrogen which is a crutial component of all organic compounds
Answer:
The appropriate answer is "9.225 g".
Explanation:
Given:
Required level,
= 63 ppm
Initial concentration,
= 22 ppm
Now,
The amount of free SO₂ will be:
= 
= 
= 
The amount of free SO₂ to be added will be:
= 
= 
∵ 1000 mg = 1 g
So,
= 
= 
Thus,
"9.225 g" should be added.
It is a Physical property because like water it changes into a ice cube but it can be melted into water or be turned back into an ice cube.