This liquid is sometimes colored alcohol but can also be a metallic liquid called mercury. Both mercury and alcohol grow bigger when heated and smaller when cooled. Inside the glass tube of a thermometer, the liquid has no place to go but up when the temperature is hot and down when the temperature is cold. Mercury is very reactive and works best. But mercury is also very a radioactive element. So, if you break the thermometer, you could get in trouble (radio active posoning) Alcohol work well, it is not radioactive and can't kill you.
Okay, hope I helped
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Answer:
The correct option is;
A) x = 2, y = 1
Explanation:
Here we have
![k[0.05]^x \cdot [0.05]^y = 0.062 \ M/sec](https://tex.z-dn.net/?f=k%5B0.05%5D%5Ex%20%5Ccdot%20%5B0.05%5D%5Ey%20%3D%200.062%20%5C%20M%2Fsec)
....................(1)
![k[0.05]^x \cdot [0.10]^y = 0.123 \ M/sec](https://tex.z-dn.net/?f=k%5B0.05%5D%5Ex%20%5Ccdot%20%5B0.10%5D%5Ey%20%3D%200.123%20%5C%20M%2Fsec)
....................(2)
![k[0.100]^x \cdot [0.100]^y = 0.491 \ M/sec](https://tex.z-dn.net/?f=k%5B0.100%5D%5Ex%20%5Ccdot%20%5B0.100%5D%5Ey%20%3D%200.491%20%5C%20M%2Fsec)
..............(3)
From experiment (1), (2) it is observed that [A] is held constant and [B] is doubled of which the rate is also observed to be doubled, therefore, when you double a reactant which result in the rate being doubled, the order of the reaction with respect to the reactant is order 1, therefore, y = 1.
Similarly between reaction (2) and (3) when the concentration of the reactant B is doubled and A is held constant the rate of the reaction is multiplied by a factor of 4, therefore, the reaction with respect to that reactant is order 2, therefore, x = 2.
Therefore, the correct option is x = 2, y = 1.
The reaction is a hydrogenation reaction of an alkene, and its equation is:
C₂H₄(g) + H₂(g) → C₂H₆(g)
Therefore, this reaction can be sped up just as any other irreversible reaction may have its rate increased, by increasing temperature and pressure to increase the effective collisions of molecules.
This is because the animals with the favorable traits would survive. Therefore they will be the only ones left because they were able to adapt to the environment. And when they breed, the offspring will gain those favorable and the less favorable traits will continue to not be used which is why they “fade away” overtime.
