Question

Chemical changes are



a.Always irreversible,b.Mostly irreversible,c.Always reverible,d.Mostly reversible

Answer 1

Explanation:

Chemical reactions are mostly irreversible due to the complexity in which they turn into another compound, cannot be reversed. Only some reactions are reversible like NO2 can be changed by heat chemically and the product can be changed back again into reactant by cooling.

Hope it helps:)

Answer 2

Answer:

answer c is right answer is yes