Question

Balance this chemical equation. Choose "blank" for the box if no other coefficient is needed. Writing the symbol implies "1." H2O2 → H2O + O2

Answer 1

4H202->2H2O+O2

Hope this helps mate good luck on whatever ur doing

Answer 2

Answer: $2H_2O_2\rightarrow 2H_2O +O_2$

Explanation: According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

$2H_2O_2\rightarrow 2H_2O +O_2$

This is an example of decomposition reaction where one reactant gives two or more than two products.