When 24.68 g KOH is dissolved in 196.7 g of water in a coffee-cup calorimeter, the temperature rises from 20.88 °C to 31.99 °C. What is the enthalpy change per gram of KOH dissolved in the water? Assume that the solution has a specific heat capacity of 4.18 J/g×K.

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?