Exploring Types of Chemical Reactions in AP Chemistry

What type of reaction does not involve the transfer of electrons?

• Oxidation-reduction reaction

• Combustion reaction

• Precipitation reaction

• Acid-base reaction

In an oxidation-reduction reaction, what happens to the atom that loses electrons?

• It becomes a neutral atom

• It gains a positive charge

• It is reduced

• It is oxidized

What does the charge of an atom become when it is oxidized?

• It becomes zero

• It decreases

• It remains the same

• It increases

Which of the following is a correct representation of reduction?

• Gaining protons

• Losing neutrons

• Gaining electrons

• Losing electrons

What mnemonic helps remember that oxidation is losing electrons?

• Oil Rig

• Ox Bridge

• Leo the Lion says ger

• Red Cat

What does 'Leo the Lion says ger' stand for?

• Lithium electrons orbit, gaining electrons rapidly

• Losing electrons is oxidation, gaining electrons is reduction

• Lead electrons oxidize, gold electrons reduce

• Losing electrons gains reduction

Which reaction type is often also a redox reaction?

• Single replacement reaction

• Decomposition reaction

• Double displacement reaction

• Neutralization reaction

What is the charge of magnesium after it donates its electrons in a redox reaction?

• +1

• +2

• -1

• 0

In a redox reaction, what happens to the metal ion?

• It becomes a non-metal

• It remains unchanged

• It is reduced

• It is oxidized

Why is it important to understand the charges in redox reactions?

• To balance chemical equations

• To predict the products of the reaction

• All of the above

• To determine the oxidation states