I'm certain that the answer is Sr
Electronic configuration: The distribution or arrangement of electrons of a molecule or an atom in molecular or atomic orbitals.
Ground state electron configuration: The distribution of electrons of an atom or molecule around the nucleus with lower levels of energy.
Now,
stands for Ruthenium with atomic number 44. It is a metal and thus, has ability to lose electrons and, becomes positively charged ion.
One can write the electronic configuration with the help of atomic number and Afbau principle, Pauli exclusion principle etc.
Ground electronic Configuration is as follows:
![Ru = s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^{10}4p^{6}5s^{1}4d^{7}](https://tex.z-dn.net/?f=Ru%20%3D%20s%5E%7B2%7D2s%5E%7B2%7D2p%5E%7B6%7D3s%5E%7B2%7D3p%5E%7B6%7D4s%5E%7B2%7D3d%5E%7B10%7D4p%5E%7B6%7D5s%5E%7B1%7D4d%5E%7B7%7D)
Soft Hand notation: ![[Kr]4d^{7}5s^{1}](https://tex.z-dn.net/?f=%5BKr%5D4d%5E%7B7%7D5s%5E%7B1%7D)
Now, when ruthenium loses two electrons then it becomes
, thus electron configuration becomes
Soft Hand notation: ![[Kr]4d^{6}](https://tex.z-dn.net/?f=%5BKr%5D4d%5E%7B6%7D)
The ground state electronic configuration of Ruthenium is
and when it loses two electrons, then electronic configuration becomes
(
)
Answer: 2 moles of
will be formed.
Explanation:
To calculate the moles :
![\text{Moles of} NaOH=\frac{80g}{40g/mol}=2moles](https://tex.z-dn.net/?f=%5Ctext%7BMoles%20of%7D%20NaOH%3D%5Cfrac%7B80g%7D%7B40g%2Fmol%7D%3D2moles)
The balanced chemical equation is:
According to stoichiometry :
2 moles of
give = 2 moles of ![H_2O](https://tex.z-dn.net/?f=H_2O)
Thus 2 moles of
give =
of ![H_2O](https://tex.z-dn.net/?f=H_2O)
Thus 2 moles of
will be formed.
(a) Reaction of nitric acid with non-metal:
C+4HNO
3
⟶CO
2
+2H
2
O+4NO
2
S+6HNO
3
⟶H
2
SO
4
+2H
2
O+6NO
2
(b) Nitric acid showing acidic character:
K
2
O+2HNO
3
⟶2KNO
3
+H
2
O
ZnO+2HNO
3
⟶Zn(NO
3
)
2
+H
2
O
(c) Nitric acid acting as oxidizing agent
P
4
+20HNO
3
⟶4H
3
PO
4
+4H
2
O+20NO
2
3Zn+8HNO
3
⟶3Zn(NO
3
)
2
+4H
2
O+2NO
hope that helps you please mark brainliest
Answer:
See explanation
Explanation:
Full molecular equation;
2NH3(aq) + AgNO3(aq) -------> [Ag(NH3)2]NO3(aq)
Full ionic equation
2NH3(aq) + Ag^+(aq) + NO3^-(aq) --------> [Ag(NH3)2]^+(aq) + NO3^-(aq)
Net ionic equation;
2NH3(aq) + Ag^+(aq) --------> [Ag(NH3)2]^+(aq)
When Silver nitrate is mixed with a solution of aqueous ammonia, a white and cloudy solution was observed.