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sukhopar [10]
3 years ago
12

Water covers over two thirds of earths surface. Yet water shortages are a major problem for many people around the world. Why do

u think this is the case?
please answer!! will give brainliest!!
Chemistry
1 answer:
KatRina [158]3 years ago
7 0

Explanation:

I think it's from over population and global warming and we can't completely drink sea water

I hope it helps

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Write the electron configurations for each of the following elements:
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Answer:

  • (a) E.C - 2,8,8,3
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How many moles of neon gas are there 25.0 L of gas or 5.0°C with a pressure of 89.9 KPa?
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  • Volume=25L
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  • Pressure=89.9kPa

Now

\\ \rm\rightarrowtail PV=nRT

\\ \rm\rightarrowtail n=\dfrac{PV}{RT}

\\ \rm\rightarrowtail n=\dfrac{89.9(25)}{5R}

\\ \rm\rightarrowtail n=89.9(5)/R

\\ \rm\rightarrowtail n=449.5/R mol

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2 years ago
Who was Alexander Fleming
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Sir Alexander Fleming (6 August 1881 – 11 March 1955) was a Scottish physician and microbiologist, best known for discovering the enzyme lysozyme and the world's first broadly effective antibiotic substance which he named penicillin.

For this discovery he shared the Nobel Prize in Physiology or Medicine in 1945 with Howard Florey and Ernst Boris Chain.

3 0
3 years ago
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An asian elephant has a weight of 52,900 newtons. this enormous weight is balanced on four feet. in a circus act, these elephant
Ira Lisetskai [31]
<h3><u>Answer;</u></h3>

≈ 18,116,438 N/m² or 18,116,438 Pascals

<h3><u>Explanation;</u></h3>
  • Pressure is the force exerted on a unit area.
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In this case, the force is 52,900 Newtons

The area = 2,920 cm²

But; 1 m² = 1000000 cm², thus;

Area = 2,920 cm²/ 1000000 cm²

        = 0.00292 m²

Pressure = 52,900 Newtons/ 0.00292 m²

               = 18,116,438.356 N/m²

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