Hydrogen can be obtained from:

 
 
 
 

A fuel cell can be used in:

 
 
 
 

Hydrogen is an element …

 
 
 
 

Can be hydrogen stored?

 
 
 
 

Do You think it’s important to consider the issue of safety in the use of hydrogen?

 
 
 
 

Which is the main feature to classify fuel cells?

 
 
 
 

What elements does a fuel cell need to generate electricity?

 
 
 
 

¿What position does the hydrogen in the periodic table?