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NNADVOKAT [17]
3 years ago
10

What is the difference between elements, compounds and mixtures in terms of particle theory?

Chemistry
1 answer:
zvonat [6]3 years ago
7 0
Element is a single substance, while a compound is the chemical combination of two or more elements, and mixture is the physical combination of two or more elements that can easily be reversed to obtain it's previous state. 
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8 l of water at 19 ∘c are mixed with 1.1 l of water at 47 ∘c in an insulated container. what is the final temperature of the sys
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1692.9 is the answer


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Justin mixed two clear liquids together during an experiment and made the following observations:
svp [43]

Answer:

B. A chemical change occurred which caused the liquid's physical properties to change.

Explanation:

The reduction of the temperature of the system meant that the reaction absorbed heat energy from it. This shows that a chemical reaction was in progress. New products were formed, and this is proved by the change in the color to blue.  

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<span>What is the atomic number of the first element to start filling an "f" sub-level?
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3 years ago
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Given the standard entropy values in the table, what is the value of `Delta"Sº"_"reaction"` for the following reaction?
Fantom [35]

Answer:

entropy of reaction = 572-718= -146J/mol-k.

Explanation:

entropy of a reaction = entropy of product - entropy of reactant.

entropy of product = 2×entropy of SO2+2×entropy of NiO

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entropy of reactant = 2×entropy if NiS+3×entropy of O2

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therefore entropy of reaction = 572-718= -146J/mol-k.

4 0
3 years ago
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ikadub [295]

There can be following constitutional isomers of a compound with molecular formula C5H10

Constitutional isomers are those compounds which differ in structure  due to difference in bonding and position of atoms



4 0
3 years ago
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