Carbon-12 has the following electron configuration: 1s2-2s2-2p2. As seen in the configuration, the right answer is: the first electron shell has 4 orbitals.
Answer:
The Sun is the closest star to Earth.
Answer:
Polyester
Acrylic
Nylon
Are all made of fossil fuels.
Chemical reaction: MnSO₄·7H₂O → MnSO₄·H₂O + 6H₂O.
MnSO₄·7H₂O is <span>manganese(II) sulfate heptahydrate.
</span>MnSO₄·H₂O is <span>manganese(II) sulfate monohydrate.
Manganese has oxidation number +2 and sulfate anion has oxidation number -2. For </span><span>crystallization water h</span>epta means seven and mono means one.
The answer would be B since it forms a solid