2 Lots of H2 (Hydrogen Gas) + 1 lot of O2 produces 2 lots of Water (H2O) and a tiny spark of electricity (see 'How is hydrogen used to make electricity?').
2H2O--->2H2 + O2 is a redox reaction because electrons are exchanged during electrolysis.
2h2 + o2 -> 2h2o All letters capitalized!!
O2(g)+2H2(g) -> 2H2O(g) (Remmeber heat/energy must also go into the reaction.) 2H2 + O2 ---> 2H2O
Water can be broken down to oxygen and hydrogen and hydrogen can be ignited in oxygen to form water. 2H2O --> 2H2 + O2 (takes energy) 2H2 + O2 --> 2H2O (releases energy)
2H2O2 ==> 2H2O + O2 the equation is balanced
They are reversible reactions. 2H2 + O2 ----> 2H2O (formation of water) 2H2O ----> 2H2 + O2 (decomposition of water)
Products are at the right side --> hydrogen H2 and oxygen O2
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2h2 + o2 2h2o
2H2 + O2 -> 2H2O - reaction to produce water H2+O2-> H2O2 - reaction to produce hydrogen peroxide
The formula 2H2 + O2 is unbalanced. It represents the reaction of hydrogen gas with oxygen gas to form water (H2O). To balance the equation, it should be written as 2H2 + O2 → 2H2O.
The reaction between hydrogen and oxygen to form water is a synthesis reaction. It is also a combustion reaction since it involves a chemical reaction of a fuel (hydrogen) with an oxidant (oxygen) to produce water and release energy in the form of heat.