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vivado [14]
3 years ago
8

Give reason:

Chemistry
1 answer:
Darya [45]3 years ago
6 0

Answer:

a.The glass beads present in the fractionating column provide a large surface area for hot vapours to cool and condense repeatedly

b.Crystallization is better than evaporation because some solids can decompose or can get burned during evaporation

Explanation:

a.The fractionating column is fitted in the neck of the distillation flask containing the mixture of liquids to be separated

b. Also in some cases impurities can remain dissolved in the solution while evaporation which cannot be removed even after filtration

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Compare and contrast global winds and local winds
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Local winds blow over certain parts of the Earth, but global winds blow around the globe as the name 'global' suggests.

Local winds like the Sirocco, Harmattan, leveche, Nor'westers, Mistral, Chinook, Foehn can be found only in certain regions. For example, Sirocco, Harmattan, are seasonal winds blowing across Northern Africa and the Leveche blows over Southern Spain. The Chinook are warm winds flowing down the leeward side of the Rocky Mountains. The Mistral is a chilly wind which blow in the Mediterranean regions during winter.

The Trade winds, Mid Latitude Westerlies and Polar Easterlies are examples of global winds.

The Trade Winds are found between the 30 degrees S and N latitudes. There are the North-East Trades and the South-East Trades, both converging at the the Equator.

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3 years ago
Which statement is FALSE?
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Answer:Mass number - Atomic Number = Neutrons

Explanation:

4 0
3 years ago
The nuclide Rn-204 is the daughter nuclide resulting from the α decay of what
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7 0
3 years ago
Which of the samples pictured is most likely a nonmetal?
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7 0
3 years ago
How many grams (mass) are in 1.7 moles of Nickel II oxide NiO?
WARRIOR [948]

Answer:

126.99g

Explanation:

NiO has a molar mass of 74.7 g/mol. This means that one mole of nickel (II) oxide has a mass of 74.7 grams. We can use stoichiometry/dimensional analysis to figure out how many grams are in 1.7 moles.

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3 0
3 years ago
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