HELP!
Suppose 4.0 grams of H2 were used? How many grams of water would be produced?

36g

Explanation:

Given parameters:

Mass of H₂  = 4g

Unknown:

Mass of water produced  = ?

Solution:

The reactants in this experiment are hydrogen and oxygen gas. The product formed will be water, H₂O.

 Now write the reaction equation first;

                   2H₂  + O₂  →  2H₂O

Find the number of moles of Hydrogen gas;

         Number of moles  =  

  Molar mass of H₂  = 2(1) = 2g/mol

        Number of moles  =   = 2moles

From the balanced reaction equation;

             2 moles of H₂ will produce 2 moles of H₂O

So, mass of H₂O produced;

        Mass of H₂O = number of moles x molar mass

   Molar mass of H₂O  = 2(1) + 16  = 18g/mol

    Mass of H₂O  = 2 x 18 = 36g

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.  

the objects have the same charge is correct.

nathan lee