Answer:
Mass = 10.1 g
Explanation:
Given data:
Mass of Fe₂O₃ produced = ?
Mass of iron rust = 12.0 g
Solution:
Chemical equation:
4Fe + 3O₂ → 2Fe₂O₃
Number of moles of iron:
Number of moles = mass/ molar mass
Number of moles = 12.0 g/ 55.85 g/mol
Number of moles = 0.215 mol
Now we will compare the moles of iron and Fe₂O₃ .
Fe : Fe₂O₃
4 : 2
0.215 : 2/4×0.125 = 0.063 mol
Mass of Fe₂O₃ :
Mass = number of moles × molar mass
Mass = 0.063 mol × 159.7 g/mol
Mass = 10.1 g
The coordination compounds' names or formulas, the oxidation state of each metal ion, and the electronic configuration of the each metal ion.
1. [V(OH2)6](NO3)3 - Vanadium(V) Oxidation State: +5 Electronic Configuration: [Ar] 3d3 4s2
2. (NH4)2[CoCl4] - Cobalt(II) Oxidation State: +2 Electronic Configuration: [Ar] 3d7 4s2
3. [Co(py)4]Br2 - Cobalt(III) Oxidation State: +3 Electronic Configuration: [Ar] 3d6 4s2
4. K4[Mn(CN)6] - Manganese(II) Oxidation State: +2 Electronic Configuration: [Ar] 3d5 4s2
5. [Co(P(CH3)3)4]2(SO4) - Cobalt(III) Oxidation State: +3 Electronic Configuration: [Ar] 3d6 4s2
6. Ni(NH3)4Cl2 - Nickel(II) Oxidation State: +2 Electronic Configuration: [Ar] 3d8 4s2
7. [CrCl2(OH2)4]+ - Chromium(III) Oxidation State: +3 Electronic Configuration: [Ar] 3d5 4s1
What is Electronic Configuration?
The arrangement of an atom's or molecule's (or other physical structure's) electrons in their atomic or molecular orbitals is known as the electron configuration in atomic physics as well as quantum chemistry. For instance, the neon atom's electron configuration is 1s2 2s2 2p6, which means that 1, 2 and 6 electrons, respectively, are present in each of the 1s, 2s, and 2p subshells. According to electronic configurations, each electron moves independently within an orbital while being surrounded by an average field produced by all other orbitals. Slater determinants as well as configuration state functions are used to mathematically describe configurations.
To learn more about Electronic Configuration
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Answer:
earth land assembling together to form single large landmass
From the negative side of the molecule.:)
Answer:
239.15. OR round down 239
Explanation: