Recapitulare - reactii de combinare - exercitii

Recapitulare - reactii de combinare - exercitii

8th Grade

10 Qs

quiz-placeholder

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Recapitulare - reactii de combinare - exercitii

Recapitulare - reactii de combinare - exercitii

Assessment

Quiz

Chemistry

8th Grade

Practice Problem

Hard

Created by

Manuela Donici

Used 72+ times

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10 questions

Show all answers

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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