PCl5 + ___ H2O → ___ HCl + H3PO4
Balancing Chemical Equations

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Science
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9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
4, 5
2.
FLASHCARD QUESTION
Front
Mg + ___ HCl → MgCl2 + H2
Back
2
3.
FLASHCARD QUESTION
Front
Which side of a chemical equation is the reactant side?
Back
Left (before the yields sign)
4.
FLASHCARD QUESTION
Front
Which side of a chemical equation is the product side?
Back
Right (after the yields sign)
5.
FLASHCARD QUESTION
Front
Balance this equation.
SnO2 + H2 --> Sn + H2O
Back
1,2,1,2
6.
FLASHCARD QUESTION
Front
What is the little number after an element in a chemical equation called? Example: H2
Back
Subscript
7.
FLASHCARD QUESTION
Front
Law of Conservation of Mass
Back
Matter cannot be gained or lost in a chemical reaction.
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