Answer:

Explanation:
Hello,
In this case, the by mass percent is computed as shown below:

Whereas the solute is the sugar and the solvent the water, therefore, the concentration results:

Best regards.
A- Change the phase of the matter
If you are talking about bonds they are influenced by electronegativity and how many valence electrons they have.
Answer:
Since the alligator population decreased, this means there are less predators for the gar. Less predators for the gar mean the gar population will increase. More gar also means more competition for the diving duck in terms of animals that eat crabs, and thus the diving duck population will also decrease.
Explanation:
Hope this helped <3
Density=mass/volume
d= 452.1/292
d= 1.55g/cm3