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4 years ago

Which statement about covalent compounds is true

Chemistry

2 answers:

soldier1979 [14.2K]4 years ago

6 0

I would say it's D. Usually covalent compounds are very brittle so that means that the bond between atoms are weak

lord [1]4 years ago

5 0

Answer is: B. they are poor conductors of heat.

Ionic compounds are good good electricity and heat conductors, because ionic compounds (for example sodium chloride NaCl) have mobile ions (cations and anions) that are able to transfer electrical charge. This compounds also conduct heat, because the ions are next to each other, so energy can be transferred efficiently from one place to another.

On the other hand, covalent compound (for example methane) are usually bad electricity and heat conductors, because molecules aren far from each other, so heat transfer is less efficient. They do not form ions and atoms are less positive and negative than in ionic compounds.

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nikdorinn [45]

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3 years ago

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A solution containing equal numbers of hydrogen ions and hydroxide ions is

igor_vitrenko [27]

Answer:

The answer to your question is: Neutral

Explanation:

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4 years ago

Be sure to answer all parts. For the complete redox reactions given here, write the half-reactions and identify the oxidizing an

OlgaM077 [116]

Answer : $O_2$ is the oxidizing agent and Fe is the reducing agent.

Explanation :

Reducing agent : It is defined as the agent which helps the other substance to reduce and itself gets oxidized. Thus, it will undergo oxidation reaction.

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The balanced redox reaction is :

$4Fe+3O_2\rightarrow 2Fe_2O_3$

The half oxidation-reduction reactions are:

Oxidation reaction : $Fe\rightarrow Fe^{3+}+3e^-$

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In order to balance the electrons, we multiply the oxidation reaction by 4 and reduction reaction by 3 then added both equation, we get the balanced redox reaction.

Oxidation reaction : $4Fe\rightarrow 4Fe^{3+}+12e^-$

Reduction reaction : $3O_2+12e^-\rightarrow 6O^{2-}$

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4 years ago

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Answer:

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3 years ago

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Tanya [424]

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