Reactiile de ardere. Oxizi.
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
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Medium
Manuela Donici
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12 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
C + O2 = CO2 + Q
Reactiile de ardere sunt din categoria reactiilor:
de combinare
de substitutie
de schimb
de descompunere
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Reactiile de ardere se mai numesc:
reactii de combustie
reactii de neutralizare
reactii redox
reactii de schimb
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
La reactiile de ardere participa intotdeauna ca reactant substanta:
oxigen molecular
azot molecular
dioxidul de carbon
carbonul
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Din exemplele date este o reactie de ardere:
C + 2 H2 = CH4
Zn + Cl2 = ZnCl2
Fe + S = FeS + Q
C + O2 = CO2 + Q
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Reactia de ardere a hidrogenului este:
H2 + 1/2 O2 = H2O + Q
H2 + S = H2S
H2 + Cl2 = 2 HCl
H2 + CuO = Cu + H2O
6.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Reactiile de ardere au urmatoarele caracteristici:
sunt endoterme (au loc cu absorbtie de caldura)
sunt exoterme (au loc cu absorbtie de caldura)
sunt exoterme (au loc cu degajare de caldura) si conduc la obtinerea de oxizi
sunt aterme ( nici nu se absoarbe, nici nu se degaja caldura)
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Oxizii sunt compusi binari ai metalelor (Fe, Cu, Na,...) sau nemetalelor (C, S, H,...) cu elementul:
Cl
O
Zn
K
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