The above diagram represents a chemical reaction where the box before the arrow shows the reactants and the box after the arrow shows the products. How many diatomic molecules are represented?
A)1
B)2
C)3
D)4

Question

Quizplus · Accepted Answer

There are two diatomic molecules represented in the reaction: H2 (hydrogen gas) and O2 (oxygen gas). They are both present as reactants and products, so the answer is not 1 or 3. There are no other diatomic molecules (such as N2 or F2) present in the reaction. Therefore, the correct answer is B (2).

The Above Diagram Represents a Chemical Reaction Where the Box