Lab: Reaction Rate — Unit test Answers

Which is true about reaction rates?

Consider the reaction that occurs when copper is added to nitric acid.Cu(s) + 4HNO3(aq) Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l)What is the reducing agent in this reaction?

Equations can be balanced by using the half-reaction method. Which step should be completed first when using this method?

During an experiment, Jon exhales through a straw and blows bubbles into a solution. Which observation would most likely indicate that a chemical reaction is occurring?

In which two types of reactions do opposite chemical changes occur?

Propane reacts with oxygen to form carbon dioxide and water. This chemical reaction is most likely a

Which equation is a decomposition reaction?

Consider the reaction below.H2(g) + CO2(g) H2O(g) + CO(g)At equilibrium at 600 K, the following are true. [CO2] = 9.5 x 10-4 M[H2] = 4.5 x 10-2 M[H2O] = 4.6 x 10-3 M[CO] = 4.6 x 10-3 MWhat is the value of the equilibrium constant for this reaction in correct scientific notation?

In the hypothetical reaction below, substance A is consumed at a rate of 2.0 mol/L·s. If this reaction is at dynamic equilibrium, at what rate will substance B be consumed?A B