3(c) Reversible reactions and equilibria

Question 1

what does it mean if a reaction goes to completion?

Answer 1

where the reactants are used up to form the product molecules and the reaction stops when the reactants have been exhausted

Question 2

reversible reactions?

Answer 2

the product molecules can themselves react with each other or decompose and form the reactant molecules again

Question 3

symbol for reversible reactions

Answer 3

⇌

Question 4

the effect of heat on ammonium chloride?

Answer 4

Heating ammonium chloride produces ammonia and hydrogen chloride gases:
As the hot gases cool down they recombine to form solid ammonium chloride
THIS IS A REVERISBLE REACTION