Balancing chemical equations
Authored by Timothy Jones
Chemistry
KG - University
Used 33+ times
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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a product?
What's left of the chemical reaction.
The beginning formulas.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Decomposition occurs when...
Two formulas combine.
A formula breaks apart.
An atom is replaced during a reaction.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which problem is balanced?
PbO2 + 2H2
So2 + H20 --> H2SO4
2Na + 2H2O --> 2NaOH + H2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a coefficient?
The small number on the right of the chemical symbol.
The large number to the left of a formula.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A synthesis occurs when...
Two formulas combine.
A formula breaks apart.
An atom is replaced during a reaction.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Solve the problem: N2 + O2 --> 2NO
N2 + O2 --> 2NO
2N2 + O2 --> 2NO
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a yield?
The arrow in an equation that represents the chemical reaction.
The beginning substances.
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