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In the balanced chemical equation, below, determine what the coefficient and the subscript represent in 6H2O.

Choose ALL the answers that are correct.



a
The 6 coefficient represents 6 molecules of water.
b
The 2 subscript represents 2 atoms in each water molecule.
c
The 2 subscript represents 2 water molecules.
d
The 6 coefficient represents 6 atoms in each water molecule.

1 answer

In the expression 6H₂O, the coefficient and the subscript have specific meanings:

a. The 6 coefficient represents 6 molecules of water.

  • Correct. The coefficient "6" indicates that there are 6 molecules of water.

b. The 2 subscript represents 2 atoms in each water molecule.

  • Correct. The subscript "2" in H₂O indicates that each water molecule contains 2 hydrogen atoms.

c. The 2 subscript represents 2 water molecules.

  • Incorrect. The subscript "2" refers to the number of hydrogen atoms in one water molecule, not the number of water molecules.

d. The 6 coefficient represents 6 atoms in each water molecule.

  • Incorrect. The coefficient "6" indicates the number of water molecules, not the number of atoms in each molecule. Each water molecule (H₂O) consists of 3 atoms in total (2 hydrogen and 1 oxygen).

So, the correct answers are:

  • a
  • b