You want to understand temperature. which of the following would you study?
a. the heaviness of different objects
b. how much air a balloon can hold
c. a glass of water and a tray of ice
d. how many marbles fit into a box

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 of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?