Question

why acid must be slowly added to water

Answer 1

Acid must be added slowly because acid reacts vigorously with water which can harm us

Answer 2

heya!

___________________________________________________________________________

When acid and water come into contact together  they release a lot of heat . Adding more acid releases more heat and when more heat is released, it can even become dangerous. Thus , acid slowly added to water for safety purposes.

__________________________________________________________________________

hope this helps!