The synthesis of NH3 is represented by the equation above. based on the equilibrium constant, K and delta H rxn given above, which of the following can best be used to justify that the reaction is thermodynamically favorable at 298 K and constant pressure? N2 (g) + 3H2 (g) --> 2NH3 (g)
K= 5.6 × 10^5 at 298 K
delta H rxn= -91.8 kj/mol

Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende

Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted

Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?