If it takes 40 joules to heat a piece of barium weighing 20g from 10.0°C to 17.0°C, what is the specific heat of the barium?

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

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2