Zinātne ikdienā
Why does ice float?
Water is bent rather than linear, so its bond dipoles do not cancel and the molecule is polar.
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Īsā atbilde
Water is bent rather than linear, so its bond dipoles do not cancel and the molecule is polar.
Kas īsti notiek?
Zinātne paliek atmiņā, ja definīcija ir saistīta ar kaut ko izmērāmu vai novērojamu.
Table salt is not made of isolated NaCl molecules in the solid; it forms an extended ionic lattice.
Zinātne paliek atmiņā, ja definīcija ir saistīta ar kaut ko izmērāmu vai novērojamu.
Noderīgs priekšstats
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Water is unusual: its hydrogen-bonded solid structure is more open than liquid water, so ordinary ice is less dense and floats.