Need help fast The slow movement of rocks from the lower mantle to the upper mantle and then back down again is what type of energy transfer?

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

Isopropyl alcohol, (ch3)2choh, is a common solvent. determine the percent by mass of hydrogen in isopropyl alcohol. a) 6.71% h b) 13.4% h c) 25.0% h d) 53.3% h