The balanced equation for the combustion of ethene is given below. If 97.7 g of oxygen is used, how much heat energy will be produced?
C2H4+ 3O2 → 2CO2 + 2H2O + 1390 kJ

1. calculate the approximate enthalpy of the reaction in joules. estimate that 1.0 ml of vinegar has the same thermal mass as 1.0 ml of water. iqnore the thermal mass of th sodium bicarbonate. note: it takes about 4.2 joules () to change 1.0 gram (1.0ml) of water 1.0 c

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?