B) chemical bond i believe is the correct answer
Answer: I think it’s the first one
the solid particles take up the intermolecular spaces in the liquid.
Answer : The percent by mass of the solution is 7.81 %
Explanation : Given,
Mass of NaCl = 8.75 g
Mass of solution = 112.0 g
Now we have to determine the percent by mass of the solution.

Putting values in above equation, we get:

Therefore, the percent by mass of the solution is 7.81 %
Answer:
if you want to find average speed so u need to use this formula
Average speed = 