The correct question is
Give the coordination number, the charge of the central metal ion, and select the correct name in each coordination compound:
Na3[CoCl6]
[Ni(CO)4]
[Ni(NH3)3(H2O)2] (NO3)2
Answer:
See explanation for details
Explanation:
Na3[CoCl6]
Name: Sodium hexacholorocobalt III
Charge on the complex: -3
Central metal ion name : cobalt III
coordination number: 6
[Ni(CO)4]
Name: tetracarbonyl nickel (0)
Charge on the complex: 0
Central metal ion name : nickel (0)
coordination number: 4
[Ni(NH3)3(H2O)2] (NO3)2
Name: Diaquatriaminenickel II nitrate
Charge on the complex: +2
Central metal ion name : nickel (+2)
coordination number: 5
Basalt, rhyolite, andesite, and obsidian could all be answers.
Answer:
![\boxed{-267.5}](https://tex.z-dn.net/?f=%5Cboxed%7B-267.5%7D)
Explanation:
You can calculate the entropy change of a reaction by using the standard molar entropies of reactants and products.
The formula is
![\Delta_{r} S^{\circ} = \sum_n {nS_{\text{products}}^{\circ} - \sum_{m} {mS_{\text{reactants}}^{\circ}}}](https://tex.z-dn.net/?f=%5CDelta_%7Br%7D%20S%5E%7B%5Ccirc%7D%20%3D%20%5Csum_n%20%7BnS_%7B%5Ctext%7Bproducts%7D%7D%5E%7B%5Ccirc%7D%20-%20%5Csum_%7Bm%7D%20%7BmS_%7B%5Ctext%7Breactants%7D%7D%5E%7B%5Ccirc%7D%7D%7D)
The equation for the reaction is
C₂H₄(g) + 3O₂(g) ⟶ 2CO₂(g) + 2H₂O(ℓ)
ΔS°/J·K⁻¹mol⁻¹ 219.5 205.0 213.6 69.9
![\Delta_{r} S^{\circ} = (2\times213.6 + 2\times69.9) - (1\times219.5 + 3\times205.0)\\\\= 567.0 - 834.5 = \boxed{-267.5 \text{ J}\cdot\text{K}^{-1} \text{mol}^{-1}}](https://tex.z-dn.net/?f=%5CDelta_%7Br%7D%20S%5E%7B%5Ccirc%7D%20%3D%20%282%5Ctimes213.6%20%2B%202%5Ctimes69.9%29%20-%20%281%5Ctimes219.5%20%2B%203%5Ctimes205.0%29%5C%5C%5C%5C%3D%20567.0%20-%20834.5%20%3D%20%5Cboxed%7B-267.5%20%5Ctext%7B%20J%7D%5Ccdot%5Ctext%7BK%7D%5E%7B-1%7D%20%5Ctext%7Bmol%7D%5E%7B-1%7D%7D)
Answer:
c
Explanation:
because the fire gives off radiation
It is to create energy that the cell can use. it takes in oxygen to break down food molecules to get cellular energy for cell function