Question

Why is mercury used for conting the polished side of a mirror​

Answer 1

Answer:

More recently, before 1940, mirror manufacturers used mercury.

Explanation:

Because it spread evenly over the surface of the glass and did not tarnish. This practice was also eventually abandoned, for it posed the problem of sealing in the toxic liquid. Today, aluminum is the most commonly used metallic coating for mirrors.

Answer 2

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Before 1940, mercury was the most commonly used metallic coating for mirrors because mercury is spread evenly over the surface of the glass and did not tarnish. This practice was eventually abandoned, because mercury seals in the toxic liquid. Today, mirror manufacturers use aluminum instead of mercury.

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