If i a reaction occurs when a piece of metal is placed in a solution what can you conclude about the solution

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

Express the following number in scientific notation. 0.026890 =

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?