Calculate the heat energy needed to heat 45.0 g of copper from 23.0°C to 30.0°C. Use chart above for specific heat of water. Use units and show all work.

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.