Recapitulare - reactii de combinare - exercitii
Authored by Manuela Donici
Chemistry
8th Grade
Used 72+ times
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10 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Alege sirul de substante compuse, care fac parte din categoria OXIZI:
H2, O2, FeO, CuOH
FeO, CaO, H2O, CO2
Al, Al2O3, CO, HCl
SO2, SO3, ZnO, Cl2
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Alege sirul de substante compuse, care intra in categoria ACIZI:
H2O, HCl, KOH, O2
NaOH, FeO, CuO, Cl2
HCl, H2SO4, H2S, H3PO4
CuOH, Fe(OH)2, CuO, FeO
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Denumirea substantei H2O este:
monoxid de dihidrogen
apa
oxid de hidrogen
acid
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Denumirea substantei HBr este:
acid bromhidric
acid bromic
acid borhidric
acid boric
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Denumirea substantei H2SO4 este:
acid sulfhidric
acid sulfuric
acid sulfuros
hidroxid de sodiu
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Reactia de combinare este:
reactia din care se obtine un singur produs de reactie, care este o substanta compusa
reactia din care se obtine un singur produs de reactie, care este o substanta simpla
reactia la care participa cel putin doi reactanti
inversa reactiei de descompunere
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Sunt ecuatii ale reactiilor de combinare:
CO2 + H2O = H2CO3
2 Ca + O2 = 2 CaO
Cu + Cl2 = CuCl2
CaCO3 = CaO + CO2
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