Identify what type of chemical reaction are the following the write and balance the chemical equation for each given chemical reaction. 1. Hydrogen and chlorine react to make HCl.
2. Ethane, C2H6, reacts with oxygen to make carbon dioxide and water.
3. Nitrogen and hydrogen reacting to produce ammonia, NH3.
4. Magnesium hydroxide reacts with nitric acid to produce magnesium nitrate and water.
5. Sodium metal reacts with water to produce sodium hydroxide and hydrog

it is the most commonly accepted one

the answer is c.the valence of the atoms combine .

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.