Hexane is a common laboratory solvent and a component of petrol. Its combustion reaction is as follows: 2 C6H14 (g) + 19 O2(g) → 12 CO2(g) + 14 H2O(l)

ΔrHo = -8326 kJ mol-1

Use the reaction enthalpy value to calculate the heat in (kJ) released by combustion of 0.0139 mol of hexane.

Modern weaponry has increased the number of deaths in wars and violent conflicts.

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer migrate inland to search for different food sources staying put until the ice refreezes sticking to the usual diet of seals