I will be entering my senior year of college this fall. I am pursuing a B.S. in Chemistry with a minor in Mathematics as well as a Masters in Secondary Education. I tutor students in Chemistry, Mathematics, Physics, and Quantitative Methods for Business at Temple University’s Student Success Center. I also help students develop healthy, effective study habits as well as problem-solving skills. My expertise is in chemistry and mathematics. I have made these types of videos before for my job, so I am familiar with the process. I also have an iPad Pro which makes it very easy to do!
Challenge Identify the oxidizing agent and the reducing agent ineach reaction.$$\begin{array}{l}{\text { a. } M g+I_{2} \rightarrow M g l_{2}} \\ {\text { b. } H_{2} S+C l_{2} \rightarrow S+2 H C l}\end{array}$$
Determine the oxidation number of the boldface element in the following formulas forions.$$\text { a. } \mathrm{NH}_{4}^+ \quad \text { b. } \mathrm{AsO}_{4}^{3-} \quad \text { c. } \mathrm{CrO}_{4}^{2-}$$
Challenge Determine the net change of oxidation number of each of the elements inthese redox equations.$$\begin{array}{l}{\text { a. } \mathrm{C}+\mathrm{O}_{2} \rightarrow \mathrm{CO}_{2}} \\ {\text { b. } \mathrm{Cl}_{2}+\mathrm{Znl}_{2} \rightarrow \mathrm{Znl}_{2}+\mathrm{I}_{2}} \\ {\text { c. } \mathrm{CdO}+\mathrm{CO} \rightarrow \mathrm{Cd}+\mathrm{CO}_{2}}\end{array}$$
Determine the oxidation number of the boldface element in these compounds.$$\begin{array}{ll}{\text { a. HNO }_{3}} & {\text { c. Sb}_{2} \text {O}_{5}} \\ {\text { b. CaN}_{2}} & {\text { d. CuWO }_{4}}\end{array}$$
Use the oxidation-number method to balance these redox equations.$$\mathrm{SnCl}_{4}+\mathrm{Fe} \rightarrow \mathrm{SnCl}_{2}+\mathrm{FeCl}_{3}$$
