Parts Quantity

What is the amount of heat, in kilojoules, when a 150g mixture containing equal parts ….?
H2 and O2 are burned? The combustion of hydrogen and oxygen mixtures are used to produce very high temperatures (about 2500 ° C) required for certain types of welding. Either the reaction H2 (g) + 1/2O2 (g) -> H2O [...]