Why is it not possible to balance an equation by changing the subscript on a substance, say from H₂O to H₂O₂?

Cobalt(II) chloride, a blue solid, can absorb water from the air to form cobalt(II) chloride hexahydrate, a pink solid. The equilibrium is so sensitive to moisture in the air that CoCl₂ is used as a humidity indicator.Write a balanced equation for the equilibrium. Be sure to include water as a reactant to produce the hexahydrate.

What is meant by the term 'balanced equation'?

Which of the following equations are balanced? Balance those that need it.a. CaC₂+2 H₂O→Ca(OH)₂+C₂H₂ b. C₂H₈N₂+2 N₂O₄→2 N₂+2 CO₂+4 H₂Oc. 3 MgO +2 Fe→Fe₂O₃+3 Mgd. N₂O→N₂+O₂

Determine whether each of the following chemical equations is balanced or not balanced:d. C₃H₈(g) + 5O₂(g) →∆ 3CO₂(g) + 4H₂O(g)

Balance each of the following chemical equations:c. Sb₂S₃(s) + HCl(aq) → SbCl₃(aq) + H₂S(g)

Balance each of the following chemical equations:d. Al(s) + HCl(aq) → H₂(g) + AlCl₃(aq)