Please help me with my chem homework! A lot of points1 Given:

N2(g) + 3 H2(g) → 2 NH3(g) ΔH= -91.8 kJ

Determine ΔH for:

1/2 N2(g) + 3/2 H2(g) → NH3(g)

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

An atom of lithium (li) and an atom of chlorine (cl) engage in a chemical reaction. which correctly describes the structure of the resulting chemical compound? hint: consider the class of each element. the chemical compound will have a network structure. the chemical compound will have triple bonds. the chemical compound will have a ball-and-stick structure. the chemical compound will have double bonds.

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned