Kémiai reakciók 3
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Medium
Regina Petkes
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5 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Bomlás során
egy anyagból több anyag keletkezik
egy anyagból egy anyag keletkezik
AB=A+B
A+B=AB
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Egyesülés során
két vagy több anyagból, egy anyag keletkezik
két vagy több anyagból, több anyag keletkezik
A+B=AB
AB=A+B
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
A következő reakciók közül, melyek egyesülési reakciók?
2H2 + O2= 2H2O
2Mg+ O2=2 MgO
2NaCl=2 Na +Cl2
2KCl=2K + Cl2
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
A következő reakciók közül melyek a bomlási reakciók?
2NaCl= 2Na+ Cl2
2Mg+ O2=2MgO
Mg Br2= Mg +Br2
2H2+ O2= 2H2O
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
CH4 + 2O2=CO2 + 2H2O
Melyek az alábbi reakcióban a kiindulási anyagok és termékek?
Kiindulási anyagok: CH4 + 2O2
Termékek:CH4 + O2
Kiindulási anyagok: CO2 + 2H2O
Termékek:CO2 + 2H2O
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