A 50.0 g sample of a metal at 225 °C is dropped into 450.0 g of water at 22.0 °C. If the final temperature of the system is 25.5 °C, what is
the specific heat of the metal?

Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.