Consider the decomposition of barium carbonate: BaCO3(s)⇌BaO(s)+CO2(g)BaCO3(s)⇌BaO( s)+CO2(g) Substance ΔH∘f (kJ/mol) S∘ (J/(mol⋅K)) BaCO3(s) −−1216.3 112.1 BaO(s) −−553.5 70.42 CO2(g) −−393.5 213.6 Part A Calculate the equilibrium pressure of CO2 at 298 K.

Noble gases is far right

The metal is named first

Both models are effective because they show the valence electrons, and these valence electrons indicate the reactivity of an element.

Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.