Prihlásiť sa
JAMB - Chemistry (2017 - No. 39)
The gas that can be collected by downward displacement of air is
chlorine
sulphur (IV) oxide
carbon (IV) oxide
ammonia
Vysvetlenie
Upward delivery works well for hydrogen and ammonia, which are both less densed than air. Sometimes, they are collected over water.
Pripomienky (0)
Ak chcete komentovať, prihláste sa
Reklama
Umožnite JavaScriptu správne načítať túto stránku
