Given the balanced chemical equation for the reaction. which is the correct expression for the equilibrium constant, keq?
2n2o5(g)< -> 4no2(g)+o2(g)
keq= [no2]^4[o2]/ [n2o5]^2

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

When a septic tank backs up a goes in to clean it out

Two liquids are poured into a beaker. after a few seconds, the beaker becomes warm. which of the following best describes this reaction? a. an exothermic reaction b. a decomposition reaction c. an endothermic reaction d. a single-displacement reaction