CH2 does not exist as a molecule.
There are, however, C2H2 and CH4, both of which are nonpolar.
I assume you mean CH2=C=CH2 or 1,2-propadiene. The molecule has two equally electronegative substituents attached to the central carbon, so no it is not polar. If it was CH2=C=O, then yes it would be polar, because the oxygen atom pulling the electron cloud toward itself, thus making it slightly negative which make he molecule polar.
CH2 does not exist on its own and polarity is generally only considered in respect of neutral moelcules.
As ethene is symmitrical molecule and have carbon atoms involved in double bond, therefore it is non polar.
Toothpaste is typically a mixture of polar and non-polar substances. The surfactants in toothpaste are usually polar, while other ingredients such as thickeners and abrasives can be non-polar.
A polar solute is expected to be soluble in a non-polar solvent. This is because "like dissolves like" – polar molecules tend to dissolve in polar solvents, and non-polar molecules dissolve in non-polar solvents.
n-Pentane is considered nonpolar because it contains only carbon and hydrogen atoms bonded together with nonpolar covalent bonds. The symmetrical arrangement of these atoms results in a molecule with no overall dipole moment.
I assume you mean CH2=C=CH2 or 1,2-propadiene. The molecule has two equally electronegative substituents attached to the central carbon, so no it is not polar. If it was CH2=C=O, then yes it would be polar, because the oxygen atom pulling the electron cloud toward itself, thus making it slightly negative which make he molecule polar.
CH2 does not exist on its own and polarity is generally only considered in respect of neutral moelcules.
As ethene is symmitrical molecule and have carbon atoms involved in double bond, therefore it is non polar.
non-polar
It is non polar.
Polar contains polar. Non-polar contains nothing.
ClO4 is polar.
Nonpolar
It is non-polar, covalent.
The compound known as CH3(CH2)16CO2H is typically considered polar. Its molecules are able to have dipole moments, and it is soluble in water.
1-bromobutane will undergo an SN2 reaction with sodium hydroxide to form 1-butanol and sodium bromide. In this reaction, the hydroxide ion replaces the bromine atom on the carbon chain, resulting in the formation of the alcohol product.