Question

Chemistry help please!

Answer 1

Answer:

The word equation is:  

$\text { hydrogen peroxide } \rightarrow \text { oxygen gas + water }$

 This reaction happens when there is the decomposition of hydrogen peroxide into oxygen and water. Thus, the equation would be  

$H_{2} O_{2} \rightarrow O_{2}+H_{2} O$

Balancing the equation requires to have the same number of atoms of each element on both the side. To balance this equation we need to add 2 water ($H_2O$) molecules  and 2  hydrogen peroxide ($H_2O_2$) molecules  . As we know, oxygen is naturally diatomic. Thus, the balancing equation would be:

$2 H_{2} O_{2} \rightarrow O_{2}+2 H_{2} O$