what is the correct picture of the missing reactant to complete a combustion reaction?\n$c_{4}h_{8} + ?o_{2}…
what is the correct picture of the missing reactant to complete a combustion reaction?\n$c_{4}h_{8} + ?o_{2} \\rightarrow 4co_{2} + 4h_{2}o$
Answer
Explanation:
Step1: Identify the total oxygen atoms in products
$$4 \text{ molecules of } CO_{2} \text{ and } 4 \text{ molecules of } H_{2}O \text{ contain } (4 \times 2) + (4 \times 1) = 12 \text{ oxygen atoms.}$$
Step2: Determine the number of oxygen molecules needed
$$12 \text{ oxygen atoms divided by } 2 \text{ atoms per } O_{2} \text{ molecule equals } 6 \text{ molecules of } O_{2}.$$
Step3: Select the image with six diatomic molecules
The middle image displays exactly six pairs of red spheres, representing $6O_{2}$.
Answer:
The middle picture showing six pairs of red spheres (6 molecules of $O_{2}$).