The number of protons and electron
Scientia, meaning knowledge and skill
3.23 x 10²³ atoms
Explanation:
Given parameters:
Volume of Argon atoms = 12L
Condition = STP
Unknown:
Number of atoms = ?
Solution:
We start from the known to the unknown. We know the volume of gas at STP to be 12L;
using the equation below, we can solve for the number of moles and find the amount of atoms.
Number of moles =
Number of moles = = 0.54mole
1 mole of substance contains 6.02 x 10²³ atoms
0.54 mole will contain 6.02 x 10²³ x 0.54 = 3.23 x 10²³ atoms
learn more:
Number of atoms brainly.com/question/10419836
#learnwithBrainly
The given complex ion is as follow,
[Ru (CN) (CO)₄]⁻
Where;
[ ] = Coordination Sphere
Ru = Central Metal Atom = <span>Ruthenium
CN = Cyanide Ligand
CO = Carbonyl Ligand
The charge on Ru is calculated as follow,
Ru + (CN) + (CO)</span>₄ = -1
Where;
-1 = overall charge on sphere
0 = Charge on neutral CO
-1 = Charge on CN
So, Putting values,
Ru + (-1) + (0)₄ = -1
Ru - 1 + 0 = -1
Ru - 1 = -1
Ru = -1 + 1
Ru = 0
Result:
<span>Oxidation state of the metal species in each complex [Ru(CN)(CO)</span>₄]⁻ is zero.
Answer:
Ca(s) + N₂(g) + 3O₂(g) → Ca(NO₃)₂ (s)
Explanation:
The reaction of the formation of Ca(NO₃)₂(s) , is as follows -
Ca + N₂ + O₂ → Ca(NO₃)₂
The above reaction , can be balanced by adding whole numbers ,
Hence , the balanced reaction is as follows -
Ca + N₂ + 3O₂ → Ca(NO₃)₂
The states of the respective molecules is -
the state at which the atoms are most stable or the state at which the atoms are most commonly found .
Hence ,
Calcium is most stable in solid state
Oxygen is most stable in gaseous state
Nitrogen is most stable in gaseous state
hence , the balanced reaction with all the states mentioned is as follows -
Ca(s) + N₂(g) + 3O₂(g) → Ca(NO₃)₂ (s) .