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Whitepunk [10]
3 years ago
9

Photochromic lenses contain Group of answer choices both AgCl and CuCl embedded in the glass. only AgCl embedded in the glass. n

either AgCl nor CuCl embedded in the glass. only CuCl embedded in the glass.
Chemistry
1 answer:
rjkz [21]3 years ago
5 0

Answer:

both AgCl and CuCl embedded in the glass

Explanation:

<em>Photochromic lenses contain both AgCl and CuCl embedded in the glass.</em>

They are light-sensitive lenses that adapt to environmental changes. They appear clear when in an apartment or a building and automatically darken when outside as a result of exposure to sunlight. The darkening is activated by the UV component of the sunlight.

Photochromic lenses are otherwise known as light-adaptive or intelligent lenses and they are formed by coating lenses with silver chloride compounds whose concentration ranges from 0.01 to 0.001 %. Copper (I) chloride is also included in addition to the silver halide.

<u>In summary, photochromic lenses contain both AgCl and CuCl.</u>

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Three common gaseous compounds of nitrogen and oxygen of different elementary composition are known: (A) laughing gas containing
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Please find how these data prove the law of multiple proportions below

Explanation:

The law of multiple proportions was proposed by an English chemist called John Dalton. The law states that when two elements combine and to form more than one compound. The weights/masses of the second element in the two compounds, which combines with a fixed ratio of the first element, is in a simple whole number ratio.

In this question, Nitrogen is said to combine with oxygen to give three different compounds as follows:

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This means that the mass of oxygen will be (1-0.6365) = 0.3635g

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This means that the mass of oxygen will be 0.5332g

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The ratios of oxygen in the three compounds is therefore:

0.3635: 0.5332: 0.6955

Divide this ratio by the smallest number (0.3635)

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