Whats the options? I need to see some options before I answer please if there are any..
Answer:
When calcium reacts with tellurium it will donates its two electrons and these two electron will be accepted by tellurium.
There must be 1 calcium atom for every 1 tellurium atom in the reaction.
Explanation:
Calcium has atomic number of 20. Its electronic configuration is given as:
![[Ca]=1s^2 2s^2 2p^6 3s^2 3p^6 4s^2](https://tex.z-dn.net/?f=%5BCa%5D%3D1s%5E2%202s%5E2%202p%5E6%203s%5E2%203p%5E6%204s%5E2)
Calcium atom will loose 2 elections to attain electronic configuration of noble gas.
![[Ca^{2+}]=1s^2 2s^2 2p^6 3s^2 3p^6 4s^0](https://tex.z-dn.net/?f=%5BCa%5E%7B2%2B%7D%5D%3D1s%5E2%202s%5E2%202p%5E6%203s%5E2%203p%5E6%204s%5E0)
Tellurium has atomic number of 52. Its electronic configuration is given as:
![[Te]=1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^{10} 4s^24p^6 4d^{10} 5s2 5p4](https://tex.z-dn.net/?f=%5BTe%5D%3D1s%5E2%202s%5E2%202p%5E6%203s%5E2%203p%5E6%204s%5E2%203d%5E%7B10%7D%204s%5E24p%5E6%204d%5E%7B10%7D%205s2%205p4)
Tellurium atom will gain 2 elections to attain electronic configuration of noble gas.
![[Te^{2-}]=1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^{10} 4s^24p^6 4d^{10} 5s2 5p6](https://tex.z-dn.net/?f=%5BTe%5E%7B2-%7D%5D%3D1s%5E2%202s%5E2%202p%5E6%203s%5E2%203p%5E6%204s%5E2%203d%5E%7B10%7D%204s%5E24p%5E6%204d%5E%7B10%7D%205s2%205p6)
So, when calcium reacts with tellurium it will donates its two electrons and these two electron will be accepted by tellurium.
There must be 1 calcium atom for every 1 tellurium atom in the reaction.
M = moles of solute / liters of solution
2.00 M = x / 10.0 L
x = 20.0 mol
Suppose the molarity was listed as 2.0 M (two sig figs). How to display the answer? Like this:
20. mol
<h2>Answer : Daniel was related to study of Earth and Space
</h2><h2>Whereas Sanya was closely related to chemistry</h2><h3>Explanation :</h3>
As in the given information, Daniel the scientist was studying the effect of tropical storms on coastal erosions. These studies comes under the field of Earth and Space. Earth because coastal erosions are involved in the study, and Space because storms are discussed which is something related to space.
In case of Sanya, it is clear that her study focuses on discharges from the industrial plant that has effect on freshwater swamps. Precisely, she is studying the pH concentration which comes in chemistry.
This prove that Daniel studies Earth and Space whereas Sanya studies Chemistry.
Answer:
el reactivo es la entrada y el producto es la salida o el resultado
Explanation:
