How many Oxygen atoms are present in this
molecular formula: 2CO2?

Why doesn't heat added to water make the tempature rise above 100c

Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).

Determine type of reaction & predict the product c3h12+o2 =