Answer:
Because the same amount of sugar is still there. The solid sugar crystals break apart in water as the sugar dissolves, but the individual sugar particles or molecules are still present and do not change as a result of dissolving in the water. The combined mass of the sugar and water shouldn't change.
If they are in the same group they have the same valence electrons but since I cannot see what you’re talking about I’m not sure what your question is
I think that the answer is B, but I may be wrong...
Answer:
Hydroxy(oxo)bismuthine oxide