When vinegar and baking soda are combined, a chemical reaction occurs and there is a change in enthalpy. Ăn energy graph of this reaction is provided in to the right. What type of reaction and energy
change occurred?
a. Exothermic, +AH
b. Exothermic, -AH
C. Endothermic, +AH
d. Endothermic, -AH

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.

If an atom has 12 protons and 13 neutrons