The answer is O2.
The ionic charge of something can be determined by it's place in the periodic table.
There you go try that out.
A, because the shape of it forms and arc much like a H2O molecule.
Answer:
You should follow these steps:
Count each type of atom in reactants and products.
Place coefficients, as needed, in front of the symbols or formulas to increase the number of atoms or molecules of the substances.
Repeat steps 1 and 2 until the equation is balanced.
Explanation:
