Which item in comparison chart takes the least amount of water to produce? Which takes the greatest? How much water is that?

Which element is the least metallic between cadmium, silver, zinc, or iron?

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.)

Connect the whole numbers on the periodic table to indicate what they represent?