Which one of the following (Li, B, N, F) has the smallest atomic radius?

Why does his teacher ask him to balance the equation by including the correct coefficient

Draw the lewis dot structure for each of the following polyatomic ions

Calculate the h3o+ concentration in a solution of acetic acid if the concentration of molecular acetic acid present at equilibrium is 9.97x10-3 m and k for the dissociation is 1.86x10-5. ch3cooh(aq)+h2o(l)+> h3o+(aq)+ch3coo-(aq) show me how to get the answer.