2h2o → 2h2 + o2 describe the mass of the reactants and products given the balanced chemical reaction. a) the mass of the products is 2 3 that of the reactants. b) the mass of the reactants equals the mass of the products. c) the mass of the reactants is less than the mass of the products. d) the mass of the reactants is greater than the mass of the products.

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)