tipuri de reacții chimice
Authored by Adriana AMAZILITEI
Chemistry
7th Grade
Used 8+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cloratul de potasiu are formula:
KCl3
KCl
KClO4
KClO3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este o reacție de schimb:
CaCO3=CaO + CO2
Mg+2HCl =MgCl2+H2
2KOH+ SO3=K2SO4+ H2O
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este o reacție de descompunere:
2Al+ Fe2O3=2Fe+ Al2O3
Ca(OH)2 =CaO+ H2O
3Fe+2O2=Fe3O4
SO2+NaOH= Na2SO3+H2O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reacția ”Vulcanului Chimic” este:
(NH4)2Cr2O7= Cr2O3+N2+4H2O
K2Cr2O7=Cr2O3+ K2O+3/2O2
(NH4)2Cr2O7= Cr2O3+NH3+4H2O
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reacția de identificare a ionilor sulfat este:
NaCl+AgNO3= NaNO3+AgCl
H2SO4+ BaCl2 = BaSO4+ 2HCl
BaO+SO3=BaSO4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identificarea ionilor sulfat se face cu:
AgNO3
BaCl2
NaOH
turnesol
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identificarea ionilor clorură, Cl- , se face cu:
Ca(OH)2
fenolftaleină
AgNO3
BaCl2
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Microsoft
or continue with
%20(1).png)
Apple
Others
Already have an account?
