The enthalpy of combustion of CH3CH2CH2CH2CH3 (M. W. = 72.15 g/mol) is 3509.0 kJ/mol. If 7.5 kg of this fuel are burned in sufficient O2, what amount of heat is released?

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to another? the volume and the shape stay the same. the volume increases to fill the new container, but the shape stays the same. the volume stays the same, but the shape changes to fit the new container. the volume and the shape change to fill the new container.