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Vikentia [17]
3 years ago
5

Which part of the eye controls whether or not the pupil dilates or constricts?

Chemistry
2 answers:
SSSSS [86.1K]3 years ago
7 0
I believe it is the iris!
KIM [24]3 years ago
3 0
Anyone correct me if i'm wrong, but I believe it is the iris?
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Why is it considered necessary to neutralize the industrial waste before allowing it to flow into the water bodies?
Aleonysh [2.5K]

Answer:

Some of the things, are extremly toxic to life

like nuculear power plants, create nuculear waste

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Explanation:

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2 years ago
Explain this method (Froth floatation method)..........​
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froth flotation is a technique commonly used in the mining industry. In this technique, particles of interest are physically separated from a liquid phase as a result of differences in the ability of air bubbles to selectively adhere to the surface of the particles, based upon their hydrophobicity.

Explanation:

Froth floatation method is commonly used to concentrate sulphide ore such as galena (PbS), zinc blende (ZnS) etc. (ii) In this method, the metaalic ore particles which are perferentially wetted by oil can be separated from gangue. (iii) In this method, the crushed ore is suspended in water and mixed with frothing agent such as pine oil, eucalyptus oil etc. (iv) A small quantity of sodium ethyl xanthate which act as a collector is also added. (v) A froth is generated by blowing air through this mixture. (vi) The collector molecules attach to the ore particles and make them water repellent. (vii) As a result, ore parrticles, wetted by the oil, rise to the surface along with the froth. (viii) The froth is skimmed off and dried to recover the concentration ore. (ix) The gangue particles that are preferentially wetted by water settle at the bottom.

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2 years ago
Please help me. How do I do ideal gas law?
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3 years ago
What is the density of ice
amm1812
The density of ice is 0.9167 g/cm<span>3</span>
5 0
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A 5.5 g sample of a substance contains only carbon and oxygen. Carbon makes up 35% of the mass of the substance. The rest is mad
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We have been given the condition that carbon makes up 35% of the mass of the substance and the rest is made up of oxygen. With this, it can be concluded that 65% of the substance is made up of oxygen. If we let x be the mass of oxygen in the substance, the operation that would best represent the scenario is,

<span>                                       x = (0.65)(5.5 g)</span>

<span>                                       <em> </em><span><em>x = 3.575 g</em></span></span>

8 0
3 years ago
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