When the Following Equation Is Balanced Using the Smallest Possible $\rightarrow$

question 9

Multiple Choice

When the following equation is balanced using the smallest possible integers, what is the number in front of the substance in bold type? MnO₂ + HCl $\rightarrow$ MnCl₂ + Cl₂ + H₂O

• A) 5
• B) 4
• C) 3
• D) 2
• E) 1

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Definitions:

Nasolacrimal Ducts

The ducts that carry tears from the lacrimal sacs in the eyes to the nasal cavity, allowing tears to drain into the nose.

Tears

A saline solution produced by the lacrimal glands in the eyes, serving to moisten and protect the eyes and to wash away irritants.

Medial Aspect

The side of a body part or structure that is closest to the midline of the body.

Cones

Photoreceptor cells in the retina of the eye that are responsible for color vision and function best in relatively bright light.