Question

multiple-choice question

in a single replacement reaction

one element replaces another element in a compound
two elements switch places
two compounds switch places
one compound replaces another element in a compound

Explanation:

Analyze the definition

The text in the image defines a single replacement reaction: "One element that starts out by itself replaces another element in a compound, kicking it out."

Evaluate the options

• Option 1: "one element replaces another element in a compound" matches the definition directly.
• Option 2: "two elements switch places" describes a double replacement reaction if referring to ions in two compounds, or is otherwise inaccurate.
• Option 3: "two compounds switch places" is incorrect.
• Option 4: "one compound replaces another element in a compound" is incorrect.

Select the correct option

The first option perfectly aligns with the provided definition of a single replacement reaction.

Answer:

• one element replaces another element in a compound (Correct answer)
• two elements switch places
• two compounds switch places
• one compound replaces another element in a compound