6) Identify which elements are oxidized and which elements are reduced. 16(H+) + 2TcO(4¯) + 3Sn(2+) ---> 2Tc(4+) + 3Sn(4+) + 8H2O ox: red:

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope