Classify the following compounds as ionic or covalent: a. MgCl2 b. Na2S c. H2O d. H2S
2 answers:
Explanation:
A compound in which there occurs sharing of electrons from atom to another is known as a covalent compound.
For example, atomic number of hydrogen is 1 and atomic number of oxygen is 8.
As electronic distribution of oxygen atom is 2, 6. So, in order to complete its octet it will share its valence electrons with two hydrogen atoms.
Hence, it will form compound which is covalent in nature.
Whereas, a compound in which there occurs transfer of electrons from one atom to another is known as an ionic compound.
For example, atomic number of magnesium is 12 and atomic number of chlorine is 17. So, in order to attain stability Mg donates its valence electrons to chlorine atoms which will form an ionic compound .
Thus, we can conclude that out of the given options compounds are classified as follows.
- Ionic compound -
and
- Covalent compound -
and
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You'll need to react 7,5 moles of Sodium with sulfuric acid to produce 3.75 moles of sodium sulfate
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First of all, you need to balance the reaction. The balanced reaction is shown below (ensuring that the Law of Conservation of Mass is met on both sides):
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Now, all that you have to do is to use molar equivalences in this reaction applying the coefficients to calculate the moles of Sodium that you'll need:
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