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arsen [322]
3 years ago
8

At 298 K, oxygen (O2) and ozone (O3) have different properties because their

Chemistry
1 answer:
Paha777 [63]3 years ago
5 0

Answer: (3) molecules have different molecular structures.


Explanation:


1) Oxygen (O₂) and ozone (O₃) are allotropes of each other.


2) Allotropes are different structural forms of a same element with different structures and properties, when they are in the same state: solid, liquid, gas.


3) The bonds is what define the structure and properties of the substances, so since O₂ has only two bonds and O₃ has three bonds, the properties and behaviors of the element are different.


4) Other example of allotropes are graphite and diamond: two different forms of carbon. Both, graphite and diamond are formed only by carbon atoms, but they are bonded differently so, as you know, diamond and graphite have different properties: graphite is very soft while diamond is one of the hardest known substances.

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How many grams of fluorine must be reacted with excess lithium iodide to produce 10.0 grams of lithium fluoride?
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Solution:
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                                   2 LiI  +  F₂    →    2 LiF  +  I₂

According to equation,

           51.88 g (2 mole) of LiF is produced from  =  37.99 g (1 mole) F₂
So,
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Solving for X,
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                      X  =  7.32 g of F₂
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