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victus00 [196]
3 years ago
5

What were the first 16 elements known in 1760

Chemistry
1 answer:
Len [333]3 years ago
6 0
Hydrogen 
Helium
Lithium
Beryllium
Boron 
Carbon
Nitrogen 
Oxygen 
Fluorine 
Neon
Sodium 
Magnesium 
Aluminum 
Silicon 
Phosphorus  and 
Sulfur  

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How does water move on its own concentration gradient?
kifflom [539]
Are you speaking of a density gradient, in which a more concentrated solution moves below a less concentrated solution?

In that case, the more concentrated solution has the greater density, and it will gradually sink below the less concentrated solution. 

In the same way, a stone will sink in water, which is less dense than the stone.
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Waste water from nuclear power plants is generally
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waste water from nuclear power plant is

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3 years ago
Can matter be created or<br> destroyed?<br><br> Yes or No
anzhelika [568]

Answer:

No

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3 years ago
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#2: A gas at unknown pressure and a volume of 66 cm has its pressure changed to 150 kPa. The new volume
Murljashka [212]

Answer:

<h2>377 kPa</h2>

Explanation:

The original pressure can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we're finding the original pressure

P_1 =  \frac{P_2V_2}{V_1}  \\

150 kPa = 150,000 Pa

We have

P_1 =  \frac{150000 \times 166}{66}  =  \frac{24900000}{66}  \\  = 377272.72...

We have the final answer as

<h3>377 kPa</h3>

Hope this helps you

7 0
3 years ago
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