Question

a chemical species that is present but does not directly participate in a reaction is called a...
select one:

byproduct

catalyst

internal standard

there is no such thing

spectator

Explanation:

• A byproduct is a secondary product formed in a chemical reaction.
• A catalyst speeds up a reaction without being consumed but it participates in the reaction mechanism.
• An internal standard is used in analytical chemistry for quantification purposes.
• A spectator ion or species is present in the reaction mixture but does not directly participate in the main reaction.

Answer:

Spectator