Answer:
Cloudy nights can be warmer than clear nights because clouds trap heat absorbed by Earth during daylight hours.
Factor that can be controlled changed or measured in an experiment.
Adding an atom affect the position of existing atoms and lone pairs by changing the geomertry and <span>changing postion of the lone pairs and atoms so that they are furthest apart. Hope this answers the question. Have a nice day.</span>
Overall, an atom is neutral charged. The Bohr model was for years accepted as the final authority because it agrees so well with experiment and observation. In this model an atom consists of a nucleus containing protons and neutrons. The neutrons are zero charge so we can forget them in looking for charges. For each proton (1 positive charge) there is always 1 electron (1 negative charge) in orbit around the nucleus. thus an atom has a equal number of electrons and protons and their net charge is zero.
We can do things to temporarily up set this natural balance (we call this electricity) but the atoms will eventually return to their naturally balanced state
Answer:
0.00120 moles of electrons had traveled through the wire.
Explanation:
Amount current passed in 132 seconds = 0.880 A
Charge passed in 132 seconds = Q
![Q=0.88 A\times 132 s=116. C](https://tex.z-dn.net/?f=Q%3D0.88%20A%5Ctimes%20132%20s%3D116.%20C)
Number of electrons = N
Magnitude of charge on an electron = q = ![1.602\times 10^{-19} C](https://tex.z-dn.net/?f=1.602%5Ctimes%2010%5E%7B-19%7D%20C)
![Q=N\times q](https://tex.z-dn.net/?f=Q%3DN%5Ctimes%20q)
![N=\frac{116. C}{1.602\times 10^{-19} C}=7.25\times 10^{20}](https://tex.z-dn.net/?f=N%3D%5Cfrac%7B116.%20C%7D%7B1.602%5Ctimes%2010%5E%7B-19%7D%20C%7D%3D7.25%5Ctimes%2010%5E%7B20%7D%20)
1 mole =
ions/ particles/ atoms
The moles of electron in
electrons:
![=\frac{7.25\times 10^{20}}{6.022\times 10^{23}}=0.00120](https://tex.z-dn.net/?f=%3D%5Cfrac%7B7.25%5Ctimes%2010%5E%7B20%7D%7D%7B6.022%5Ctimes%2010%5E%7B23%7D%7D%3D0.00120)
0.00120 moles of electrons had traveled through the wire.