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MA_775_DIABLO [31]
3 years ago
14

Which is a radical? A. OB. HC. OHD. H2O​

Chemistry
1 answer:
Gnesinka [82]3 years ago
8 0

Answer: C. OH

Explanation: A radical is defined as a molecule with unpaired electrons; thus your answer is OH. However, if you want a more general definition (an atom or molecule with unpaired electrons), then OH, O and H are all radicals. Only H2O is a closed-shell species. and is therefore not a radical.

Hope this helps! :)

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calculate the volume od a CO2 cartridge that has a pressure of 850 PSI at a temperature of 21ºc the cartridge contains 0.273 mol
gladu [14]
Answer is: volume of CO₂ is 0,113 dm³.
Ideal gas law = pV = nRT.
p = 850 PSI = 5860543,6992 Pa.
Psi <span>is the abbreviation of pound per square inch.
T = 21</span>°C = 294,15 K.
n = 0,273 mol.
R = 8,314 J/K·mol.
V = nRT ÷ p
V = 0,273 mol · 8,314 J/K·mol · 294,15 K ÷ 5860543,6992 Pa.
V = 0,00011 m³ = 0,113 dm³.
3 0
3 years ago
CH4 is the ___________________ formula for methane.
Llana [10]
CH4 is the molecular formula for methane.
5 0
3 years ago
A sample of pure NO2 is heated to 335 ∘C at which temperature it partially dissociates according to the equation 2NO2(g)⇌2NO(g)+
vodka [1.7K]

The equilibrium constant for the reaction is 0.00662

Explanation:

The balanced chemical equation is :

2NO2(g)⇌2NO(g)+O2(g

At t=t  1-2x ⇔ 2x + x moles

The ideal gas law equation will be used here

PV=nRT

here n= \frac{w}{W} = \frac{w}{V}= density

P = \frac{density RT}{M}       density is 0.525g/L, temperature= 608.15 K, P = 0.750 atm

putting the values in reaction

0.75 = \frac{0.525 x 0.0821 x 608.15 }{M}

  M    = 34.61

         

to calculate the Kc

Kc=\frac{ [NO] [O2]}{NO2}

  \frac{1-2x}{1+x} x M NO2 + \frac{2x}{1+x} M NO+ \frac{x}{1+x} M O2

Putting the values as molecular weight of NO2, NO,O2

\frac{46(1-2x) +30(2x)+32x}{1+x}

34.61= \frac{46}{1+x}

x= 0.33

Kc= \frac{4x^2)x}{1-2x^2}

    putting the values in the above equation

Kc = 0.00662

     

5 0
3 years ago
Many people in South America are subsistence farmers. Subsistence farming is...
galben [10]

growing only enough crops for food to fed the family

Explanation:

subsistence farming is the practice of growing crops only for own use .. some developing countries are only doing farming for their personal use so they are in the stage of developing ..in a country like nepal we not being able to trade our farming .if we want to export then also we arenot getting the good market ..

8 0
3 years ago
Read 2 more answers
How long is a frozen turkey good for in the freezer?
Dmitrij [34]

Answer: Turkeys are good  for up to 2 years if frozen well in a good freezer

I recommend to at least cooking it within 1 year for the best quality if you cook it in 2 years it may lose some of its quality taste-wise.

if it's not frozen well check the texture and smell to see if its gone bad. it also depends on the type of turkey you are buying, depending on the turkey you purchase always check for an expiration date such as a butterball turkey,  so make sure you check their date.

8 0
3 years ago
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