Answer:
Explanation:
Hello,
In this case, for such formation of sulfur hexafluoride, the standard enthalpy of formation is -1220.47 kJ/mol (data extracted from NIST database). Next, we compute the moles in 10.0 grams of sulfur hexafluoride as shown below:
Next, for the given energy, we compute the total heat that is liberated:
Finally, we conclude such symbol has sense since negative heat is related with liberated heat.
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Answer:
two electrons are lost by magnesium to form magnesium ion (Mn+2) and gained by two oxygen atoms (O-)
Answer:
Explanation:
Hello there!
In this case, according to the reaction:
Thus, since there is a 4:2 mole ratio of P to P2Cl5 and the molar mass of the later is 239.2125 g/mol, we obtain the following mass as the produced one:
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Answer:
Explanation:
Here, we want to write the electronic configurations for the given atoms
Spdf Notation:
Here, we start by knowing the atomic number of the atoms. The atomic number is the same as the number of electrons for an electrically neutral atom
For Phosphorus:
The number of electrons is 15
We have the spdf notation as follows:
For Chlorine, the number of electrons is 17
We have the spdf notation as follows:
Orbital Diagram:
For the orbital diagram, we simply fill in the orbitals as shown in the spdf notation
Each subshell contains 2 maximum number of electrons of opposite spin
For Phosphorus, we have it that:
For Chlorine, we have it that: