Balancing Chemical Equations

Flashcard
•
Chemistry
•
9th Grade
•
Hard
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18 questions
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1.
FLASHCARD QUESTION
Front
What coefficient should be used to make the equation N2+O2--> _NO balanced? Options: 1, 2, 3, 4
Back
2
2.
FLASHCARD QUESTION
Front
Which problem is balanced?
Options: PbO2 + 2H2, SO2 + H2O --> H2SO4, 2Na + 2H2O --> 2NaOH + H2
Back
2Na + 2H2O --> 2NaOH + H2
3.
FLASHCARD QUESTION
Front
How many HCl molecules do you need to balance this equation? Mg + __HCl ---> MgCl2 + H2
Back
2
4.
FLASHCARD QUESTION
Front
Balance this equation: _Al +_HCl --> _H2 +_AlCl3
Back
2,6,3,2
5.
FLASHCARD QUESTION
Front
Which of the following equations are correctly balanced? Options: 12CO2 +H2O --> C6H12O6 + O2, CO2 + 9H2O --> C6H12O6 + O2, CO2 + H2O --> 3C6H12O6 + O2, 6CO2 + 6H2O --> C6H12O6 + 6O2
Back
6CO2 + 6H2O --> C6H12O6 + 6O2
6.
FLASHCARD QUESTION
Front
Balance the following equation: ___ H2+ ___ O2→___ H2O
Back
2, 1, 2
7.
FLASHCARD QUESTION
Front
Balance the following equation: ___ Mg+ ___ O2→___ MgO
Back
2, 1, 2
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