Question

the reaction system quick check a candle slowly burns until the last bit of wax and wick are gone. the two reactants in this chemical reaction are the wick and oxygen. which statement correctly identifies components as part of the system or the surroundings for this chemical reaction? (1 point) \bigcirc in the candle, only the wick is part of the surroundings. \bigcirc in the air, only the oxygen is part of the system. \bigcirc all of the air is part of the system. \bigcirc all of the candle is part of the surroundings.

Explanation:

To solve this, we analyze the system (candle burning reaction: reactants are wick/wax and oxygen). The system includes the reactants (wick/wax and oxygen from air), surroundings are what's not part of the reaction system.

• Option 1: Wick is part of the system (candle), not surroundings. Incorrect.
• Option 2: Air has oxygen (reactant) and other gases. Only oxygen is part of the system (as reactant), others are surroundings. Correct.
• Option 3: All air has non - reactant gases (like nitrogen) which are surroundings, so not all air is system. Incorrect.
• Option 4: Candle (wick + wax) is part of the system (reactant), not surroundings. Incorrect.

Answer:

The option "In the air, only the oxygen is part of the system." (the third option in the list of choices)