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nata0808 [166]
3 years ago
5

HELP ASAP PLEASE!!!

Chemistry
1 answer:
Mashcka [7]3 years ago
3 0
I believe it’s false
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A white crystalline salt conducts electricity when it is melted and when it dissolves in water.
sergeinik [125]

Answer: Option (a) is the correct answer.

Explanation:

Ionic salts are defined as the salts which tend to contain ionic bonds as there occurs transfer of electrons between its combining atoms.

So, when an ionic salt melts or it is dissolved in water then it will dissociate into its respective ions and as electricity is the flow of electrons or ions. Hence, this salt is then able to conduct electricity.

As covalent compounds are insoluble in water so, they do no dissociate into ions. Hence, they do not conduct electricity.

Similarly, metallic and network solids do not dissociate into ions either when melted or dissolved in water. Therefore, they also do not conduct electricity.

Thus, we can conclude that when a white crystalline salt conducts electricity when it is melted and when it dissolves in water then this bond is of ionic type.

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3 years ago
(14.1.50) 0.03 mol of helium are enclosed in a cylinder with a piston which maintains a constant pressure in the helium. Initial
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Answer:

a) 0.210 j /k

b) 0.032 j/k

Explanation:

Find the attachment for solution

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3 years ago
What evidence from the experiment shows that conduction occurred? In your answer, be sure to include the materials involved in t
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Answer:

Explanation:

The melting of the chocolate pieces one by one showed that it was caused by heat flowing through the foil bridge. The transfer of heat happened between the foil bridge and the chocolate pieces because they were touching each other.

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Which are characteristics of a prokaryotic cell? Select three options. contains DNA lacks DNA contains ribosomes lacks ribosomes
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Contains DNA, contains ribosomes, lacks a nucleus
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A piece of lithium is placed on the surface of some water in a beaker. hydrogen is given off. Lithium hydroxide is formed. What
Gala2k [10]
<span>A piece of lithium is placed on the surface of some water in a beaker. Hydrogen is given off and Lithium hydroxide is formed. The word equation would be as follows:
</span>

lithium<span> + </span>water<span>→ </span>lithium hydroxide<span> + </span>hydrogen

Hope this answers the question. Have a nice day.
8 0
3 years ago
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