What is the heat of combustion of candle wax in kJ/mol? The standard heat of formation of candle wax (C20H42) is -2230 kJ/mol. The standard heats of formation of carbon dioxide gas and liquid water are -394 kJ/mol and -286kJ/mol, respectively

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)

Match the formula for the following compound:   magnesium sulfate heptahydratemgs·7h2omg2so4·7h2omg(so4)2·7h2omgso4·7h2o