Prevent additional sources of pollution because if the water gets polluted it can not be used and/or it won’t be pure/clean anymore.
KE = mv²/2
m=2*KE/v²
v=50 m/s
KE=500J
m=2*KE/v² =2*500/50²=1000/2500= 0.4 kg
Answer:
The balanced equation is 2K(s) + Cl2(g)→2KCl(s)
