Https://www.khanacademy.org/science/chemistry/chemical-reactions-stoichiome/stoichiometry-ideal/v/stoichiometry-example-problem-2 this should explain
Missing question:
a. Mg(OH)2.
b. CH3Cl.
<span>c. MgCl2 .</span>
<span>d. C2H4(OH)2.
</span>Answer is: a. Mg(OH)₂.
An Arrhenius base is a
substance that dissociates in water to form hydroxide ions (OH⁻).
In this example magnesium hydroxide is an Arrhenius base:
Mg(OH)₂(aq) → Ba²⁺(aq) + 2OH⁻(aq).
CH₃Cl and C₂H₄(OH)₂ are organic compound and will not give hydroxide ions in water, MgCl₂ is neutral salt and it will give Cl⁻ ions.
The scientist that came up with the idea of natural selection was Charles Darwin.
The image on the left has been split in half to reveal the five spherical nodes that make up the 5s orbital. The nodal structure of the 5s-orbital is seen in the shape on the right. The higher s-orbitals ( 6s and 7s), while still spherical, are more complicated since they feature more spherical nodes.