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What is the molecular formula of water?

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What’s inside this PDF?

Question: What is the molecular formula of water?

Options:

  1. H2O
  2. H2O2
  3. HO
  4. H2

Correct Answer: H2O

Solution:

The molecular formula of water is H2O.

What is the molecular formula of water?

Practice Questions

Q1
What is the molecular formula of water?
  1. H2O
  2. H2O2
  3. HO
  4. H2

Questions & Step-by-Step Solutions

What is the molecular formula of water?
  • Step 1: Understand that water is a compound made of two elements: hydrogen and oxygen.
  • Step 2: Know that each water molecule contains two hydrogen atoms and one oxygen atom.
  • Step 3: Write the symbol for hydrogen, which is 'H'.
  • Step 4: Write the symbol for oxygen, which is 'O'.
  • Step 5: Indicate the number of hydrogen atoms in the formula by writing '2' before 'H'.
  • Step 6: Combine the symbols and numbers to form the molecular formula: H2O.
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