
Chemical Reaction
Authored by Lacy Shamsie
Chemistry, Science
7th - 8th Grade
Used 2+ times

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50 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What coefficient should be used to make the following equation balanced?
N2+O2--> _NO
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Which equation is balanced?
PbO2 + 2H2
SO2 + H20 --> H2SO4
2Na + 2H2O --> 2NaOH + H2
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
How many HCl molecules do you need to balance this equation?
Mg + __HCl ---> MgCl2 + H2
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What law governs the balancing of chemical equations?
Law of Energy
Law of Conservation of Matter/Mass
Law of Gravity
Law of Matter Movement
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the total number of atoms present in 5Na3PO4
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What are the coefficients that would properly balance this equation?
__Ca + __H2O --> __Ca(OH)2 + __H2
2,1 --> 2,1
1,2 --> 1,1
1,2 --> 2,4
1,2 --> 2,1
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the total number of atoms present in 5Na3PO4
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