
Reactia de combinare
Authored by Munteanu Oana
Chemistry
8th Grade
Used 17+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Intr-o reacție de combinare, reactantii pot fi:
Substante simple
Substante compuse
Substante simple și compuse
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La reactia de ardere a piliturii de fier se obține o substanță solida, de culoare neagra numită:
Oxid feros
Oxid feroferic
Oxid feric
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
În urma reactiei metalelor cu clorul se obțin saruri numite:
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H2O + CO2 =.......
Acid carbonic
Apa distilata
Acid sulfuric
Acid clorhidric
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
În urma reactiei de combinare se obține:
Un singur produs de reacție, substanta compusa
Doi produși de reacție, substante simple
Un singur produs de reacție, substanta simpla
Doi produși de reacție, o substanta simpla și una compusa
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Reactia de stingere a varului:
Este o reacție exoterma
Conduce la obținerea varului stins
Consta în reactia de combinare a oxidului de calciu cu apa, când se obține hidroxidul de calciu
Este importanta deoarece se obține o substanta utilizata în construcții
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Arderea incompleta a carbonului conduce la formarea:
Dioxidului de carbon
Monoxidul de carbon
Acid carbonic
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