When the following equation is balanced properly under acidic conditions, what are the coefficients of the species shown? Sn2+ + ClO2 Sn + ClO3- Water appears in the balanced equation as a fill in the blank 5 (reactant, product, neither) with a coefficient of . (Enter 0 for neither.) How many electrons are transferred in this reaction

1. Once a chemical equilibrium has been established, only the forward reaction occurs. only the reverse reaction occurs. the forward and reverse reactions occur at an equal rate. the forward and reverse reactions stop.

Complete and balance each acid-base reaction. a. H3PO4(aq) + NaOH(aq) Contains three acidic hydrogens b. H2SO4(aq) + Al(OH)3(s) Contains two acidic hydrogens c. H2Se(aq) + Ba(OH)2(aq) Contains two acidic hydrogens d. H2C2O4 (aq) + NaOH(aq) Contains two acidic hydrogens

A student set up an experiment for six different trials of the reaction between 1.00-M aqueous acetic acid, CH3COOH, and solid sodium hydrogen carbonate, NaHCO3. CH3COOH(aq) + NaHCO3(s) NaCH3CO2(aq) + CO2(g) + H2O() The volume of acetic acid was kept constant, but the mass of sodium bicarbonate increased with each trial. The results of the tests are shown in the figure. (a) In which trial(s) is the acetic acid the limiting reactant? (b) In which trial(s) is sodium bicarbonate the limiting reactant? (c) Explain your reasoning in parts (a) and (b).