Calculate the value of the equilibrium constant, kc , for the equilibrium shown below, if 0.124 moles of no, 0.0240 mole of h2, 0.0380 moles of n2 and 0.0276 moles of h2o vapor were present in a 2.00 l reaction vessel at equilibrium. 2no(g) + 2h2(g) < —> n2(g) + 2h2o (g) 6.54 0.352 3.27 0.176

Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What element has similar physical and chemical properties as boron.