Question
Chemical Reactions Unit Test
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Question
How many atoms of carbon (C) are present in the reactants of the following chemical equation?
C7H16+O2→CO2+H2O
(1 point)
Responses
16 atoms
16 atoms
1 atom
1 atom
23 atoms
23 atoms
7 atoms
7 atoms
Answers
GPT-4o mini
To determine how many atoms of carbon (C) are present in the reactants of the given chemical equation:
C7H16 + O2 → CO2 + H2O
We look only at the reactants, which are C7H16 and O2.
In C7H16, there are 7 carbon atoms. O2 does not contain any carbon atoms.
Therefore, the total number of carbon atoms in the reactants is 7.
So, the correct response is:
7 atoms
C7H16 + O2 → CO2 + H2O
We look only at the reactants, which are C7H16 and O2.
In C7H16, there are 7 carbon atoms. O2 does not contain any carbon atoms.
Therefore, the total number of carbon atoms in the reactants is 7.
So, the correct response is:
7 atoms