How many grams of nh3 can be prepared from 85.5 grams of n2 and 17.3 grams of h2 ?

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 is the effect of returning nuclear reactor cooling water back into bodies of water?

Light waves are as they pass through the