Earth's surface is heated unevenly because more heat reaches the_? a. area near the poles b. northern hemisphere c. southern hemisphere d. area near the equator

If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 kelvin and 1.21 atmospheres? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %