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The answer is
The positive charges of the nuclei and the negative charges of delocalized electrons or the <span> metallic bonds.
</span><span>In a piece of metal, you have positive and negative charges attracting each other, holding the metal together.The positive charges come from the nucleiThe negative charges come from the delocalized electrons
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The change of state from liquid to gas is called evaporation because solid to liquid is called melting and liquid to solid is called freezing and solid to gas is called sublimation and gas to solid is called deposition. So liquid to gas is called evaporation......hope it helped :)
Answer:
The following are the four unusual characteristics of water due to hydrogen bonding:
1. Water exhibits high specific heat as the presence of hydrogen bonds enhances the concentration of energy needed for the molecules to accelerate the speed, thus, elevating the specific heat.
2. Water has both high melting and high boiling points as hydrogen bonds enhance the energy, which is needed at the time of phase change, thus, increasing both the melting and the boiling points.
3. The hydrogen bonds present in the water gives rise to robust intermolecular attractions, therefore, enhancing the surface tension.
4. The hydrogen bonds present in the water makes the water to exhibit high heat of vaporization, that is, of about 41 KJ/mol.
The answer is A beautiful
Answer:
c) CH₃Cl
Explanation:
Due the relative abundance of chlorine and bromine. It is possible to determine which of the halogens is present in a mass spectrum of a organic compound:
The Cl-35, Cl-37 have a relative abundance of 75/25; Br-79 and Br-81 of 50/50.
For that reason, if a compound has a M/M+2 ratio of 75:25 you can be sure the compound has 1 Cl in its structure. Thus, the only possible structure is:
<h3>
c) CH₃Cl</h3>