3 years ago

Why a finely powdered sample should be used in a melting point measurement?

Chemistry

1 answer:

lapo4ka [179]3 years ago

6 0

because it a essential for good heat transfer

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Which substance has a nonpolar covalent bonds? Cl2 SO3 SiO2 CCl4

Nikolay [14]

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Substance with a nonpolar covalent bonds is $Cl_2$ .

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Polar covalent compound: This compound is formed when difference in electronegativity between the atoms is present. When atoms of different elements combine, it results in the formation of polar covalent bond. For Example: $CO_2,NO_2$ etc..

Non-polar covalent compound: This compound is formed when there is no difference in electronegativity between the atoms. When atoms of the same element combine, it results in the formation of non-polar covalent bond. For Example: $N_2,O_2$ etc.

Substance with a nonpolar covalent bonds is $Cl_2$ .

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