
Sádra, cement, vápno
Authored by Pavel Čingl
Chemistry
9th Grade
Used 1+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Z čeho se vyrábí sádra?
ze sádrokartonu
ze sádry
ze sádla
ze sádrovce
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Sádra se používá ve stavebnictví a *****
ve zdravotnictví
v pojišťovnictví
v chemickém průmyslu jako součást benzínu
v dopravě
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Vápno se vyrábí z vápence ****
pálením
topením
sypáním
mícháním
vařením
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pro hydroxid vápenatý se používá název:
vyhořelé vápno
uhašené vápno
hašené vápno
hasicí vápno
ohořelé vápno
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ve stavebnictví se používá malta. Jaké je složení malty?
hašené vápno, voda, písek
voda, písek, dřevo
hašené vápno, voda, písek, lepidlo
hašené vápno, beton, voda
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cement spolu s vodou a pískem/štěrkem utvoří:
hašené vápno
beton
písek
štěrk
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hydroxid vápenatý má vzorec:
CaCO3
Ca(OH)2
H2CO3
CaSO4
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