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Alex
3 years ago
12

After use, non-biodegradable plastics last for many years in __________ sites. Many also pollute the ocean.

Chemistry
1 answer:
Len [333]3 years ago
7 0

Answer:

Land fill

Explanation:

A landfill is a carefully managed waste disposal site. It is the oldest method of waste disposal. In a dumpsite, biodegradable materials decay overtime.

However, non-biodegradable materials such as plastics and other polymers tend to last many years in landfills. This category of wastes pose a great threat to the environment.

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Calculate the pressure of O2 (in atm) over a sample of NiO at 25.00°C if ΔG o = 212 kJ/mol for the reaction. For this calculatio
Pepsi [2]
Answer : Given data ;
Δ G° = 212 KJ/molTemperature is = 25+273 = 298 KAnd gas constant R = 0.008314 KJ/mol

The reaction is NiO(s) ⇌ Ni(s) + \frac{1}{2}  O_{2 _{(g)} We can find out the pressure on oxygen by using the equation of gibb's free energy with remainder quotient which is,                                      ΔG = ΔG° +RT lnQ
when at equilibrium Q = K, here K is equilibrim constant, and ΔG becomes 0;
so we get, 0 = ΔG° + RT ln K
on rearranging we get, ln K = ΔG° / (RT)
ln K = 212 / (0.00831 X 298) = 85.6  
Here, now K =  = 1.51 X 10^{37}
When we get K = 1.51 X 10^{37}

But, K = (PO_{2})^ \frac{1}{2}So, (1.51 X 10^{37}) ^ \frac{1}{2} = 3.87 X 10^{18}
Hence, the pressure of oxygen will be = 3.87 X 10^{18} Pa

Now, Pa to atm conversion will be 3.756 X 
10^{13} atm
7 0
3 years ago
What is indicated by the methyl- prefix ​
Ugo [173]

Answer:

B

Explanation:

The methyl prefix means theres a CH3 group bonded to a carbon in a hydrocarbon. This is called branching because it looks like a branched tree. This is literally cheating but you do you.

3 0
1 year ago
What is the net ionic equation for AgNO3 and Na2CO3
natima [27]
2Ag+(aq) + CO2-_3(aq)-----------Ag2CO3
5 0
3 years ago
Can an element with eight valence electrons still be reactive?
raketka [301]
No they cant bc it is a noble gas.
3 0
3 years ago
A gas that exerts a pressure of 537 torr in a container with a volume of 5.30 L will exert a pressure of 255 torr when transferr
ArbitrLikvidat [17]

Answer:- The gas needs to be transferred to a container with a volume of 11.2 L.

Solution:- From Boyle's law. "At constant temperature, Volume is inversely proportional to the pressure."

It means, the volume is decreased if the pressure is increased and vice versa.

Here, the Pressure is decreasing from 537 torr to 255 torr. So, the volume must increase and calculated by using the equation:

P_1V_1=P_2V_2

Where, P_1 is initial pressure and P_2 is final pressure. Similarly, V_1 is initial volume and V_2 is final volume.

Let's plug in the values in the equation:

(537 torr)(5.30 L) = (255 torr)(V_2)

V_2=(\frac{537 torr*5.30 L}{255 torr})

V_2 = 11.2 L

So, the new volume of the container needs to be 11.2 L.

4 0
3 years ago
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