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Juli2301 [7.4K]
3 years ago
9

Carbon is often found in long chains composed of carbon and

Chemistry
2 answers:
EastWind [94]3 years ago
6 0
C.) <span>Carbon is often found in long chains composed of carbon and "Hydrogen"

Hope this helps!</span>
vladimir2022 [97]3 years ago
4 0
C) hydrogen as it has a property of catenation to form hydrocarbons as orgaic compounds
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A mixture of three noble gases has a total pressure of 1.25 atm. The individual pressures exerted by neon and argon are 0.68
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First of all, as you seen the gases are noble which means that will not react with each other and in this case each gas create individual pressure.  

P_{T}= total pressure  

P_{Ne} = pressure of neon  

P_{Ar} = pressure of argon  

P_{He} = pressure of helium {which is required}

P_{T} = P_{Ne} + P_{Ar} + P_{He}    

1.25 = 0.68 + 0.35 +  P_{He}

P_{He}   = 1.25  - [0.68 + 0.35] = 0.22 atm

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