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kati45 [8]
3 years ago
9

[Cu(NH3)4](OH)2 Name it

Chemistry
2 answers:
xeze [42]3 years ago
8 0
Tetramminecopper

[iCu(ST4)R](1NG)0
thé answer is a combination which is called a typefncowmmmings
pychu [463]3 years ago
7 0

Answer:

this is a coordination compound perhaps tertramminecopper

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Lithium iodide has a lattice energy of −7.3×102kJ/mol and a heat of hydration of −793kJ/mol. Find the heat of solution for lithi
Anna007 [38]
Delta H of solution = -Lattice Energy + Hydration 
<span>Delta H of solution=- (-730)+(-793) </span>
<span>Delta H of solution= -63kJ/mol </span>

<span>Now we find moles of LiI: </span>
<span>10gLiI/133.85g=.075moles </span>
<span>multiply moles to the delta H of solution to cross cancel moles. .75moles x -64kJ/mol =4.7</span>
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Explain the principle upon which separation is achieved in a distillation column.
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Answer:

The fundamental principle involves the formation of equilibrium and separation into distillate and bottoms governed by the equilibrium composition curve , number of stages and the purity with which the distillate is required.

Explanation:

Distillation is a type of the separation process by physical means of a mixture on basis of its difference in boiling point or vapor pressure .  

Where we can just heat the mixture and separate out the components i.e the component with lower boiling point will form vapor easily and can be later condensed whereas the component with higher boiling point will remain as residue.

In case of a distillation column the same principle is applied at different stages to separate multiple components .The stages are known as trays or plates . In general , there is a certain liquid on each of the plate, and the arrangements are made for the ascending vapors to pass through the liquid and make contact with it . The fundamental principle involves the formation of equilibrium and separation into distillate and bottoms governed by the equilibrium composition curve , number of stages and the purity with which the distillate is required.

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True or False? Some solids after mixing with other solids can be distinguished from each other
katen-ka-za [31]

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True

Explanation:

Depends of the size and comparison

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If your asking for the definition of opinion, it's the belief or judgement of how you see a certain situation, example

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Describe the three types of system: a.open: b.closed: c. Isolated:
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An open system is when there is a transfer of energy and matter with its surroundings.

A closed system is where there is a transfer of energy, may it be heat or work, but not matter with its surroundings.

An isolated system is where there is no transfer of energy or matter with its surroundings.

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