Does the PROCESS of crude oil distillation have environmental impacts? Please answer ASAP

1 answer:

5 0

Accidental fires, explosions, and chemical and gas leaks are common at refineries. Such accidents cause higher than usual amounts of pollution, which may result in more acute exposure to pollutants and greater health impacts.

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Why is water a very good substance for use in cooling systems of automobiles?

Inessa [10]

It can absorb thermal energy without a large change in temperature.

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3 years ago

When 1.375 g of copper (II) oxide is reduced on heating in a current of hydrogen, the weight of copper remaining after the react

nasty-shy [4]

Answer:

20.11% of oxygen

Explanation:

The reaction is:

2CuO ⇒ 2Cu + O2

If you have an initial amoung of a sample, thi may be have impurities, so you have to start from products to know what you had at the begining.

to make a relation between reagents and products you need to change the mass to mol, then you can relate them with the molar ratio.

$1,098gCu x \frac{1mol Cu}{63.546g Cu} x \frac{2mol CuO}{2molCu} x \frac{1mol O}{1molCuO} x \frac{16gO}{1molO} = 0,276gO$

Now you have the initial amount of oxygen, to convert to percent you must divide the mass of oxygen between the mass of the sample and multiply by 100

$percent composition of O = \frac{0.276gO}{1.375g sample} *100 = 20.11$

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3 years ago

Which structures does a single cell organism need for movement?

arsen [322]

Answer:

Actually, many single-celled organisms have a structure that facilitates mobility within the cell's environment. These often take the form of flagella, thin structures that emanate from the cell wall and push into the outer environment

Explanation:

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3 years ago

Please help ! its urgent!!

ArbitrLikvidat [17]

Answer:

Explanation:

Respiration is the process by which you get energy from food. So energy in food is converted to a form that can be used by the body

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Water’s unique properties, high heat capacity, high density, solid phase less dense than liquid phase can be attributed to

Xelga [282]

Answer:

B- The polarity of the molecules and hydrogen bonding between molecules.

Explanation:

Hope this helps:)

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