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-BARSIC- [3]
4 years ago
15

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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A 951g sample of carbon steel with a specific heat capacity of .49j is heated to 673k and quenched in oil. The steel cools to 52
nikdorinn [45]

Answer: all I know it’s not -31.5 for ppl taking the k12 test

Explanation: I took the test

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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:

A neutral solution is a solution whose pH is 7.

That means that this solution has the same amount of H⁺ and OH⁻.

Examples of neutral solutions:

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4 0
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.

Oxidizing agent : It is defined as the agent which helps the other substance to oxidize and itself gets reduced. Thus, it will undergo reduction reaction.

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^-

Reduction reaction : O_2+4e^-\rightarrow 2O^{2-}

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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In this reaction, 'Fe' is the reducing agent that loses an electron to another chemical species in a redox chemical reaction and itself gets oxidized and 'O_2' is the oxidizing agent that gain an electron to another chemical species in a redox chemical reaction and itself gets reduced.

Thus, O_2 is the oxidizing agent and Fe is the reducing agent.

7 0
4 years ago
Any five uses of solution.....​
laiz [17]

Answer:

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3 0
3 years ago
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Where does the water in air come from?
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About 90 percent of water in the atmosphere is produced by evaporation from water bodies, while the other 10 percent comes from transpiration from plants. There is always water in the atmosphere.✌️

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