Assign Oxidation Numbers, identify redox & oxidation, and balance by the Oxidation Number method: classify all reactions in two ways: Precipitation, Acid Base, or Redox, Combustion and by changes in composition: Combination, Decomposition, Single Displacement, or Double Displacement. Fe2O3(s) + 3CO(g) --> 2Fe(s) + 3CO2(g)

If the fictitious metal Girrafium (Gi (s) --> Gi2+ (aq) + 2e-) were to appear in the activity series between Manganese and Aluminum predict the following reactions: Gi (s) + AgNO3 (aq) ---->                                       Gi(NO3)2 (aq) +  Cu (s) --->                                 Gi(NO3)2 (aq) + Al (s) --->                                   Gi (s) + Mg(NO3)2 (aq)  --->

Write the balanced net ionic equations for the following reactions and classify the reactions (some reactions may fall under multiple classes). Potassium metal reacts with water to form hydrogen gas and potassium hydroxide.   Answer: K(s) + H2O(l) ----> KOH(aq) + H2(g) and Redox and Single displacement   Please explain steps and why those reactions take place

Consider a gas-evolution reaction as below: CaCO3(s) + 2 HNO3(aq) ----> Ca(NO3)2(aq) + CO2(g) + H20(1) What is the net ionic equation in this reaction?

Sodium oxalate, Na2C2O4Na2C2O4, in solution is oxidized to CO2(g)CO2(g) by MnO−4MnO4− which is reduced to Mn2+Mn2+. A 50.3 −mL−mL volume of a solution of MnO−4MnO4− is required to titrate a 0.342 −g−g sample of sodium oxalate. This solution of MnO−4MnO4− is then used to analyze uranium-containing samples. A 4.60 −g−g sample of a uranium-containing material requires 33.0 mLmL of the solution for titration. The oxidation of the uranium can be represented by the change UO2+→UO2+2UO2+→UO22+.     Part A Calculate the percentage of uranium in the sample.

Complete and balance the given precipitation reactions, including the physical states of the products as predicted by the solubility rules.   Ba(NO3)2 (aq) + CuSO4 (aq) ---> K3PO3(aq) + MgCl2 (aq) --->   Examine the precipitation reactions to determine whether each of the involved species is oxidized, reduced, or neither. Ba2+, SO42-, Cu2+, PO43-, Cl-, Mg2+, K+, NO3-