
Chemické reakce
Authored by Petra Horáková
Chemistry
8th Grade
Used 28+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Kationt Ca 2+:
2 elektrony přijímá
2 elektrony odevzdává
neodevzdává ani nepřijímá elektrony
2.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Reaktanty jsou:
výchozí látky reakce
látky, které při reakci vznikají
katalyzátory
3.
FILL IN THE BLANK QUESTION
10 sec • 1 pt
Opačná reakce k fotosyntéze je:
4.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Reakce, při které se teplo spotřebovává je:
exotermická
endotermická
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Hoření je reakce:
exotermická
endotermická
6.
FILL IN THE BLANK QUESTION
10 sec • 1 pt
O jaký zákon jde?
"Hmotnost reaktantů se musí rovnat hmotnosti produktů."
7.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Aniont Cl -:
1 elektron odevzdá
1 elektron přijme
neodevzdá ani nepřijímá elektron
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