The power has gone out and you find a flashlight that uses batteries. When you turn on the flashlight, you are transforming:

2. how is heavy water different from normal water

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

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.)