Reactia de combinare-evaluare
Quiz
•
Chemistry
•
1st Grade
•
Practice Problem
•
Hard
Standards-aligned
Oana N
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10 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Reactia de combinare este definita ca:
Reactia chimica in care un reactant se transforms in 2 say mai multi produsi de reactie
Reactia chimica in care 2 sau mai multi reactant se transforma intr-un singur produs de reactie
Reactia chimica in care 2 reactant se transforma in 2 produsi de reactie.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Schema generala pentru reactia de combinare este:
C=A+B
A+B=C
A+B=C+D
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Recunoaste reactia de combinare:
C+O2=CO2
2H2O=2H2+O2
2Na+2H2O=2NaOH+H2
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Reactia chimica dintre metal si oxigen are ca produs de reactie:
Oxid de nemetal
Oxid de metal
Oxiacid
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Clorul in reactie cu metalele da:
Cloruri
Floruri
Ioduri
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Oxid de nemetal +apa=:
Hidroxid
Oxid de nemetal
Oxiacid
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Reactia carbonului cu oxigenul este o reactie:
Exoterma
Endoterma
Descompusa
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