
Substanțele în natură
Authored by NICULAE ANCA
Chemistry
7th Grade
Used 13+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este proprietate fizică:
arderea cărbunilor
topirea gheții
fierberea apei
punctul de fierbere al apei este 100 grade Celsius
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este proprietate chimică:
topirea ghețarilor
proprietatea lemnului de a arde
arderea gazului metan
duritatea
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este fenomen fizic:
inghețarea apei
acrirea laptelui
ruginirea fierului
coclirea cuprului
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este amestec omogen
apă + mâl
apă + nisip
apă +ulei
apa + sare
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este amestec eterogen:
apă + alcool
apă + zahăr
apă + benzină
apă + miere
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este substanță simplă
apa
cuprul
sarea de bucătărie
dioxidul de carbon
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este substanță compusă:
clorul
hidrogenul
carbonatul de calciu
oxigenul
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