Calculate the density of a block of aluminum that occupies a volume of 15.0 mL and has a mass of 40.5 g. Make sure your answer has the correct units.
D=M/V

|using the periodic tablewarm-upuse the periodic table in the tools bar to answer the following questions.what elemental classification does oxygen belongto? done

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.)

What best discribes the relationship between wavelength and frequency in a electromagnetic wave