Quiz on Balancing Chemical Reactions
Which is a common method for balancing?
A
Using a calculator
B
Trial and error method
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Which is a common method for balancing?
A
Using a calculator
B
Trial and error method
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What is a coefficient in a reaction?
A
Type of chemical bond
B
Number in front of a compound
What is an unbalanced reaction?
A
Different atom counts on sides
B
No change in states
What does '2H2 + O2' yield?
A
H2O2
B
2H2O
Which type of reaction is 'A + B → AB'?
A
Decomposition reaction
B
Synthesis reaction
What does a balanced equation show?
A
Mass and charge are conserved
B
Energy is created and destroyed
What do you adjust to balance?
A
Coefficients only
B
Subscripts in compounds
