How many atoms of carbon (C) are present in the reactants of the following chemical equation?
C7H16+O2 - CO2+H2O
A. 7 atoms
B. 16 atoms
C. 1 atom
D. 23 atoms
To determine the number of atoms of carbon (C) present in the reactants, we need to count the number of carbon atoms in each compound on the left side of the equation.
In C7H16, there are 7 carbon atoms.
Therefore, the answer is A. 7 atoms.