12,000 Joules of energy are needed to heat up a certain mass of water by 10. °C. (specific heat of water is
4.18 J/gºC)
What is the mass?

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)

Which three statements represent the benefits of performing experiments using computer simulations?

Who examines and coordinates the cleanup of polluted sites?