# data[].attributes.body
2H2 + O2 ---> 2H2O then it becomes H2(g) + 1/2 O2(g) ----> H2O(l)+ heat

# data[].attributes.body
+ heat in H20

# data[].attributes.body
CH4(g) + 2O2(g) => CO2(g) +2H2O(l) + heat

# data[].attributes.body
C8H18 + 12.5 O2 = 8 CO2 + 9 H2O

# data[].attributes.body
CH4(g) + 2O2(g)-----> CO2(g)+2H2O(l) +heat
exothermic

# data[].attributes.body
C8H18 +12.5O2 -----> 8CO2 +9H2O +HEAT

# data[].attributes.body
C8H18 + 25/2O2 ---> 8CO2 + 9H2O + heat