Chem with reference to the "chemistry at work" box on explosives, use bond enthalpies to estimate the enthalpy change for the explosion of 1.00 g of nitroglycerin. i found that the answer is 7.85 kj, but how?

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

Ahelium balloon contains 16.9 l of helium at stp. how many atoms of helium are in the balloon