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Akimi4 [234]
3 years ago
9

Which intermolecular force is characteristic of compounds which are liquids at room temperature and have relatively high boiling

points?
Chemistry
1 answer:
SIZIF [17.4K]3 years ago
6 0
Thew answer is hydrogen bonds. 
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How many oxygen atoms are in<br> Ba(MnO4)2?
vlabodo [156]

Answer:

4

Explanation:

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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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How many hydrogen molecules are there in 1 ton of hydrogen?​
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Hydrogen gas(H2) has a molar mass of 2 g. Molar mass of a substance is defined as the mass of 1 mole of that substance. And by 1 mole it is meant a collection of 6.022*10^23 particles of that substance.

So number of moles of H2 are 0.5 in this case. And thus it means there are (6.022*10^23)*0.5 particles( here they are molecules) in 1g of H2.
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67.2g/3.5cm3= 19.2g/cm3
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3 years ago
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