Why cant we carry out the combustion of magnesium in a calorimeter?

The boiling point of liquids is very high what does it indicate

If 90.0 grams of ethane reacted with excess chlorine, how many grams of dicarbon hexachloride would form

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6