Answer:
The rain containing excess of acid I called acid rain
Answer:
5.46% is the percent by mass concentration of the solution.
Explanation:
Mass of LiBr= 8.2 g(Solute)
Mass of solution = 150 g (Solution)
Mass of solution = Mass of solute + Mass of solvent
Mass of solute < Mass of solvent (Always)
Mass of water = 150 g - 8.2 g = 141.8 g (solvent)
Mass percentage is given as:


5.46% is the percent by mass concentration of the solution.
D. More collisions occur and the time required for the reaction decreases
This happens because according to collision theory, when energy (in this case, thermal energy) is applied to particles, they move/vibrate more quickly.