Me with questions 8 and 9! i really need ! me! me !

This bond energy is the amount energy that it takes to break the bonds, and also the amount of the energy that is released when the bonds are formed. Consequently, if the bonds in your reactants have a higher total bond energy than your products, the reaction will be endothermic. If they have a lower total bond energy, it will be exothermic.

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.