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NO ... all burning/combustion reactions are exothermic.
All of them can be redox reactions.
For any combustion reaction O2 is required .
In all Redox reactions some things are oxidized (meaning those elements lose electrons) and some things are reduced (meaning those elements gain electrons). The phrase to remember is OIL RIG - Oxidation Is Losing Reduction Is Gaining.
That is correct.
All combustion is exothermic. ( i love pie)
NO ... all burning/combustion reactions are exothermic.
Oxygen gas, O2, is present in all combustion reactions. Example: Combusting methane gas CH4(g)+2O2(g) ----> CO2(g) + 2H2O(g)
All of them can be redox reactions.
For any combustion reaction O2 is required .
Energy
All 4 are considered oxidation-reduction reactions
O2
All chemical reactions have a common structure. It must have reactants, that are the substances that you have at the beginning, and the product that are the new substances you get at the end.
All types of combustions are oxidation reactions.
Natural gas, petrol, wood, candles, (etc.) and all other commonly known combustion reactions can NOT be reversed. (Thats a pity, though!)
All chemical reactions have a common structure. It must have reactants, that are the substances that you have at the beginning, and the product that are the new substances you get at the end.