Balancing Equations

Flashcard
•
Chemistry
•
11th Grade
•
Hard
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17 questions
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1.
FLASHCARD QUESTION
Front
Fill in the blanks with coefficient: PCl5+_ H2O→_ HCl+H3PO4
Back
4, 5
2.
FLASHCARD QUESTION
Front
Which equation is balanced?
Options:
PbO2 + 2H2--> H2SO4
,SO2 + H20 --> H2SO4
,2Na + 2H2O --> 2NaOH + H2
,2Na + 2H2O --> 2NaOH + H
Back
2Na + 2H2O --> 2NaOH + H2
3.
FLASHCARD QUESTION
Front
Coefficient
Back
The large number to the left of a formula.
4.
FLASHCARD QUESTION
Front
Balance this equation
_Zn+_HCl-->_ZnCl2 +_H2
Back
1,2,1,1
5.
FLASHCARD QUESTION
Front
Balance this equation.
_Mg + _Cl2 --> _MgCl2
Back
already balanced
6.
FLASHCARD QUESTION
Front
How many atoms of aluminum are on each side of the following equation: 4Al + 3O2 --> 2Al2 O3
Back
4
7.
FLASHCARD QUESTION
Front
The blue numbers in the image below represent ________
Back
subscripts
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