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3 years ago

What is the answer for this question?

Chemistry

1 answer:

emmainna [20.7K]3 years ago

6 0

Hey there!

The more energy a substance is, the more movement it has.

The energy of a substance determines its state of matter.

From least to most energy, it goes solid, liquid, gas.

So it needs to be going from a lower energy state to a higher energy state.

The only one that goes from a lower energy state to a higher energy state is C. H2O (l) --> H2O (g).

Hope this helps!

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For each of the following compounds, state whether it is ionic or covalent, and if it is ionic, write the symbols for the ions i

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Answer :

Covalent compound : It is defined as the compound which is formed by the sharing of electrons between the atoms forming a compound.

The covalent compound are usually formed when two non-metals react.

Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.

All the polyatomic ions always form an ionic compound.

Polyatomic ions : It is a charged species that composed of two or more atoms and these charged species are bonded by the covalent bond.

For the given options:

Option A: $KClO_4$

This compound is formed by the combination of potassium, $K^+$ which is a metal and $ClO_4^-$ ion which is a polyatomic ion. Thus, it will form an ionic compound.

Option B: $Mg(C_2H_3O_2)_2$

This compound is formed by the combination of magnesium, $Mg^{2+}$ which is a metal and $C_2H_3O_2^{-}$ ion which is a polyatomic ion. Thus, it will form an ionic compound.

Option C: $H_2S$

Hydrogen and sulfur, both are non-metals and they will form a covalent compound.

Option D: $Ag_2S$

This compound is formed by the combination of silver, $Ag^{+}$ which is a metal and sulfur, $S^{2-}$ which is a non-metal. Thus, it will form an ionic compound.

Option E: $N_2Cl_4$

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Option F: $Co(NO_3)_2$

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Answer:

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