Difficulty: Medium
Average Score: 92%
Entry Exam
Which statement is true regarding combination reactions?
Correct answer
C
Rationale
In a combination reaction, two or more substances combine to form a single product. This reaction type does not always involve only one reactant (choice A), an element and an ionic compound (choice B), or require oxygen gas (choice D). The true characteristic of combination reactions is that they form only one product, making choice C the correct answer.