Question

multiple - choice question
a water molecule is made of:
1 oxygen atom and 2 hydrogen atoms
the c, h, o, n, p and s atoms found in macromolecules
2 oxygen atoms and 1 hydrogen atom
rewatch

Explanation:

The chemical formula of water is \(H_2O\). In this formula, \(H\) represents hydrogen and \(O\) represents oxygen. The subscript \(2\) next to \(H\) indicates there are 2 hydrogen atoms, and the absence of a subscript next to \(O\) (which is equivalent to a subscript of \(1\)) indicates there is 1 oxygen atom.

Answer:

1 oxygen atom and 2 hydrogen atoms.