The radius of a niobium atom is 131 pm. How many niobium atoms would have to be laid side by side span a distance of 4.56 mm?
atoms

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

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?

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange