A 4.0 kg copper skillet must be heated from room temperature (23.0 C) to a temperature of 130.0 degrees Celsius. If the specific heat of copper is 0.3851 J/g. Degrees Celsius, how many Joules of heat are required?

It’s b. mass i searched it up

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium

The answers are 3.c kelvin4.b liquids only

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.