Enesekontroll loodusõpetus: ptk 24-25.
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Medium
Gerda Moor
Used 15+ times
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16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis on pildil?
vee molekulvalem
vee planetaarne mudel
vee keramudel
vee elektronskeem
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Protsess, mille käigus ained muutuvad teisteks aineteks on
keemiline reaktsioon
põlemine
reaktsioonivõrrandi koostamine
molekulvalemi kirjutamine
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aine, mille aineosakeseks on molekul
molekulaarne aine
mittemolekulaarne aine
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vähemalt kahest aatomist koosnevat aineosakest nimetatakse
molekuliks
kivimiks
aatomiks
mineraaliks
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milline neist on mittemolekulaarne aine?
vesi
süsihappegaas
kuld
glükoos
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molekulvalem näitab
aatomite liiki ja arvu molekulis
aatomite arvu
keemilise elemendi nimetust
aine elektronskeemi
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis on põlemise keemilise reaktsiooni tunnused?
soojusenergia ja valguse eraldumine
põlemine
sademe teke
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