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exis [7]
2 years ago
14

In the analysis of hair and fiber samples, which does a compound comparison microscope allow for that a conventional compound mi

croscope does not?
A. simultaneous observation

B. polarization

C. fluorescence

D. higher magnification
Chemistry
1 answer:
Alex777 [14]2 years ago
4 0

I believe it would be D. Higher magnification

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3 years ago
reativity of alkali metals increases down the group while reativity decreases down the group in helogens ​
BigorU [14]

Complete question is;

Chemical reactivity of alkali metals increases down the group while reactivity of halogens decreases down the group. Give reasons

Answer:

Explained below

Explanation:

Alkali metals exhibit reactivity due to their electropositivity. Now, for alkalis, their electro-positivity increases down their group. Since their reactivity increases with increase in electropositivity, it means their reactivity also increases down the group.

Whereas, the reactivity of halogens occurs as a result of their electronegativity. Now, electronegativity for halogens decreases down the group. Since their reactivity decreases with decrease in electronegativity, it means that their reactivity will also decrease down the group.

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Mixture is the answer 
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<em>i think the answer is b </em>

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