Mešanje in homogeniziranje

Quiz by Lea Levstik

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8 questions
• Q1
Mešanje snovi je kemijski proces.
false
true
True or False
20s
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• Q2
Z mešanjem dobimo
ločene sestavine
idealno zmes
čisto snov
realno zmes
30s
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• Q3
Praške mešamo po pravilu rastočih mas. Kaj to pomeni?
Najprej zmešamo lažje praške (manjša gostota), nato dodajamo težje.
Najprej mešamo polovico vsake sestavine, nato dodamo še preostanek.
Najprej zmešamo sestavine z najmanjšimi delci.
Najprej zmešamo sestavine, ki jih je najmanj, nato dodajamo ostale.
60s
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• Q4
Disperzni sistem, kjer je tekoča faza porazdeljena po zunanji tekoči fazi, imenujemo:
Users re-arrange answers into correct order
Jumble
60s
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• Q5
Sistem, kjer je trdna snov porazdeljena v tekoči, imenujemo:
Users re-arrange answers into correct order
Jumble
60s
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• Q6
Kdaj je zmes homogena?
ko so delci poenoteni v velikosti in porazdelitvi
ko so delci poenoteni v velikosti
homogene so samo prave raztopine
ko so delci poenoteni v porazdelitvi
60s
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• Q7
S homogeniziranjem se poveča stabilnost izdelka.
drži
ne drži
20s
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• Q8
Za homogeno porazdelitev trdnih delcev v mazilu lahko uporabimo:
gibajoči mešalec (Y-cone)
trivaljčni mlin
stresalnik
magnetno mešalo
45s
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