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Kruka [31]
2 years ago
10

Classify the following compounds as ionic or covalent: a. MgCl2 b. Na2S c. H2O d. H2S

Chemistry
2 answers:
tia_tia [17]2 years ago
6 0

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 H_{2}O 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 MgCl_{2}.

Thus, we can conclude that out of the given options compounds are classified as follows.

  • Ionic compound - MgCl_{2} and Na_{2}S
  • Covalent compound - H_{2}O and H_{2}S
k0ka [10]2 years ago
4 0
MgCl2 is ionic because it is a positive metal bonding with a negative nonmetal. Na2S is ionic for the same reason. H2O and H2S are both covalent because they are two nonmetals bonded together.
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Answer:

9 L

Explanation:

According to the question , the given reaction is -

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Since ,

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Hence , as given in the question -

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22.4 L = 1 mol

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2 moles of NO will produce 2 moles of NO₂.

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6 0
3 years ago
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3 0
2 years ago
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how many moles of sodium are needed to react with sulfuric acid to produce 3.75 moles of sodium sulfate according to the followi
anastassius [24]
Hello!
<span>
You'll need to react 7,5 moles of Sodium with sulfuric acid to produce 3.75 moles of sodium sulfate
</span>
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):

2Na + H₂SO₄ → Na₂SO₄ + H₂

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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Have a nice day!
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Answer:

Explanation:

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