Question

questions 43 - 47 prompt
questions 43 - 47: pick the correct definition for each term.
44 multiple answer 2 points
oxidation-reduction reaction (choose all that apply)
reaction between an acid and base.
reaction between a hydrocarbon and oxygen.
reaction that forms a solid from two aqueous solutions.
reaction where a gas is formed.
reaction where electrons are transferred.

Explanation:

1. Analyze each option:

• "Reaction between an acid and base" is a neutralization reaction, not redox.
• "Reaction between a hydrocarbon and oxygen" (combustion) involves electron transfer (hydrocarbon oxidized, O₂ reduced), so it's redox.
• "Reaction that forms a solid from two aqueous solutions" is a precipitation reaction, not redox.
• "Reaction where a gas is formed" – some gas - forming reactions (e.g., metal + acid) are redox (electron transfer), so this can apply.
• "Reaction where electrons are transferred" is the fundamental definition of an oxidation - reduction reaction.

Answer:

• Reaction between a hydrocarbon and oxygen.
• Reaction where a gas is formed.
• Reaction where electrons are transferred.