A substance that contains polar covalent bonds may not be overall polar. This is due to the shape of the molecule. Water molecules are polar molecules. Both of the bonds inside the molecule are ...

Electrons can be shared unequally in a molecule, creating a polar molecule. Opposite polar ends of molecules attract and hold one molecule to another. Alcohol has one O–H bond which is polar, but a ...

high surface tension relatively high viscosity All ionic lattices and polar covalent molecules are: soluble in water and other polar solvents insoluble in non-polar solutions (eg hexane ...

The study, published as the cover story in the journal Science Advances, reveals that the composition of an oily substance called sebum in polar bear fur is responsible for its ability to repel ...

The attraction of polar water molecules to each other helps create water's strong surface tension. The water molecules beneath the surface are pulled in all directions. The molecules at the surface ...

Scientists warned on Thursday that the long-term health of Inuit hunters in eastern Greenland was under threat, due to ...

A new method of tracking the dietary habits and contaminant exposure of animals in Arctic marine ecosystems is providing critical insights as climate change reshapes the region's food web.

Scientists warned yesterday that the long-term health of Inuit hunters in eastern Greenland was under threat, due to ...