Balancing Chemical Equations

Flashcard
•
Chemistry
•
9th - 10th Grade
•
Hard
Wayground Content
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10 questions
Show all answers
1.
FLASHCARD QUESTION
Front
How many Oxygens are in this molecule? (OH)2
Back
2
2.
FLASHCARD QUESTION
Front
What are the smaller numbers that you CANNOT change in a chemical equation?
Back
Subscript
3.
FLASHCARD QUESTION
Front
What are the larger numbers that you CAN CHANGE in a chemical equation? Options: Coefficient, Products, Reactants, Subscripts
Back
Coefficient
4.
FLASHCARD QUESTION
Front
How many HCl molecules do you need to balance this equation?
Mg + __HCl ---> MgCl2 + H2
Back
2
5.
FLASHCARD QUESTION
Front
Pb(NO3)2 + KI --> PbI2 + KNO3
What type of reaction is this? Options: Synthesis, Decomposition, Single Replacement, Double Replacement
Back
Double Replacement
6.
FLASHCARD QUESTION
Front
Na + O2 -----> Na2O
Type of reaction? Balance it too.
Back
Synthesis, 4Na / 2Na2O
7.
FLASHCARD QUESTION
Front
What type of reaction is this?
__H2O2 ----> __H2O + O2
Options: Synthesis, Decomposition, Single Replacement, Combustion
Back
Decomposition
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