Reacția de combinare și reacția de descompunere

Quiz
•
Chemistry
•
8th Grade
•
Hard
+2
Standards-aligned
Giurgea Gabriela
Used 57+ times
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
In reactia de descompunere sunt:
doi reactanti
un reactant
trei reactanti
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
In reactia de descompunere pot fi:
doi produsi de reactie
un produs de reactie
doi sau mai multi produsi de reactie
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Ecuatia generala a reactiei de descompunere este:
AB = A + C
X = Y + Z
A = B + C
A = B + C + D
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Produsii de reactie obtinuti in urma descompunerii termice a CaCO3 sunt:
Ca + CO3
CaO + CO2
CaO + C
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In urma descompunerii apei oxigenate rezulta:
H2 + O2
H + O2
H2O + O2
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Reactiile chimice care au loc cu absorbtie de caldura sunt:
exoterme
endoterme
Tags
NGSS.HS-PS3-4
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Substanta care mareste viteza de reactie se numeste:
Catalizator
Enzima
substanta
Tags
NGSS.HS-PS1-5
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