A student determined that 2.5 grams of methane, CH4, produced 139kJ of heat in a bomb calorimeter. What is Delta(E)(rxn) for the combustion of methane in kJ/mole CH4?

10.063g / 10.00 ml = 1.0063 g/ml which rounds off to 4 sig figs as: 1.006 g/ml

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.