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Chemical Reactions Unit Test

3 of 183 of 18 Items

Question
Use the equation to answer the question.

CH4 + 2O2 → CO2 + 2H2O
If you change the 2 in front of 2O2
to a 3, what will be the change in the results on the right side of the equation?

(1 point)
Responses

Nothing changes in the equation.
Nothing changes in the equation.

There is an extra O2
molecule left over.
There is an extra cap o sub 2 molecule left over.

There are now 3CO2
molecules.
There are now 3 cap c cap o sub 2 molecules.

There are now 3H2O
molecules.
There are now 3 cap h sub 2 cap o molecules.

1 answer

There are now 3CO2 molecules.
There are now 3H2O molecules.
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