Redox and Thermochemistry Review

What is the oxidation state of iron in the compound FeCl2

• 0

• +1

• +2

• +3

Match the following

• +1

• Oxidation state of the chloride anion

• 0

• Oxidation State of Fe3+

• -1

• Oxidation State of diatomic oxygen

• -2

• Oxidation State of H+

• +3

• Oxidation State of monatomic oxygen

What is the oxidation state of manganese in the permanganate ion (MnO4)-1

As particle speed increases, thermal energy (heat) increases, which causes temperature​ to (a)   ​ ​

• increase
• decrease

What are the correct coefficients of the redox reaction?:

• 1, 4, 2, 4

• 1, 6, 4,5

• 2, 4, 2, 5

• 1, 5, 2, 4

For an exothermic reaction the change in enthalpy (Delta H) is:

• negative

• positive

For an endothermic reaction, the change in enthalpy (Delta H) is:

• negative

• positive

If the change in Enthalpy is positive, this means

• Enthalpy of products > Enthalpy of reactants

• Enthalpy of products < Enthalpy of reactants

The change in enthalpy of a reaction is defined as:

• The sum of the enthalpies of the products minus the sum of the enthalpies of the reactants

• The sum of the enthalpies of reactants minus the sum of the enthalpies of products

• The sum of all of the enthalpies in the reaction

If you were wanting to find the change in enthalpy of the reverse reaction, you would:

• Change the sign of the enthalpy of the forward reaction

• Take the inverse of the enthalpy of the forward reaction

  (1/Delta H)

• Nothing- the enthalpies are the exact same, whether the reaction is in the forward or reverse direction