8. ORO SUDĖTIS IR TARŠA
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Vygandas Marozas
Used 11+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Oras yra dujų mišinys. Tai įrodė:
M. Lomonosovas
A. L. Lavuazjė
D. Mendelejevas
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pastovios oro sudedamosios dalys yra šios:
deguonis, azotas, anglies dioksidas
vandenilis, deguonis, azotas
deguonis, azotas, inertinės dujos
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Oras yra:
sudėtinė medžiaga
mišinys
vieninė medžiaga
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Ore yra deguonies:
35%
21%
78%
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Orą teršia:
vandenilis
geležies oksidai
sieros oksidai, azoto oksidai
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Oras yra žaliava šioms medžiagoms gauti:
vandeniliui
azotui
ozonui
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Vieninės medžiagos deguonies cheminė formulė yra:
O
O2
O3
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