Wëssenschaft am Alldag

Why does ice float?

Water is bent rather than linear, so its bond dipoles do not cancel and the molecule is polar.

Déi kuerz Äntwert

Water is bent rather than linear, so its bond dipoles do not cancel and the molecule is polar.

Wat geschitt wierklech?

Wëssenschaft bleift am Kapp, wann eng Definitioun mat eppes Moossbarem oder Beobachtbarem verbonne gëtt.

Table salt is not made of isolated NaCl molecules in the solid; it forms an extended ionic lattice.

Wëssenschaft bleift am Kapp, wann eng Definitioun mat eppes Moossbarem oder Beobachtbarem verbonne gëtt.

E nëtzlecht Gedankebild

Water is unusual: its hydrogen-bonded solid structure is more open than liquid water, so ordinary ice is less dense and floats.

Méi déif

Molecular Geometry · Chemical Bonding

Quellen

IUPAC · NIST · BIPM